First question is how lo-tech are we talking here? Might DIY sandbags, DIY suspension straps, some sort of iso strap/bar set up be on the menu?
The following is what has worked for me and I have seen to work for other people if applied along with a good diet. These are general guidelines that while not necessarily Party approved, fall in line with what Schoenfeld and others have documented, and work with any type of resistance training in my experience. The trick is adapting whatever you are using to follow these guidelines.This is not an actual program, more of guideline. Many existing programs can be modified somewhat to get more hypertrophy.
You will need to up your calories.
For Hypertrophy you really want to be in an 8-12 reps range, 5-6 minimum, 8-10 is about perfect. You want 3 sets per lift/movement, dropping to 2 sets for peripheral work if included to avoid burning out. An additional set for warmup on bigger movements might push the set count to 4. I'd do two lifts per, so about 6 sets total for the bigger movements, 2-4 for peripheral work. Peripheral work might be calves, tricep, bicep, grip. I have a hard time uttering the word "isolation", but depending on how important the size and definition gains are, you will want to include some isolation lifts/movements for peripherals.
You want to include a bit of heavier work periodically using just a couple of compound lifts/movements with bigger loads/tougher movements etc and work in a 3-5 rep range with lots of rest between sets without going to failure (but right to the edge). Work about 5 sets per. Get 4-5 minutes rest between sets. You could omit this bit of periodizing but eventually you'll plateau and without including the heavier lifts it will be tough to continue progressing on a Hypertrophic regimen. However, you might have gotten all you wanted at that point anyway, or all you're liable to get without eating ever increasing amounts of food. Still, the strength component is a serious metabolic boost and should be included.
It helps a lot if you can go to momentary failure or at least incorporate a drop set of some kind - some way of reducing the load mid stream so you can start with a 3-5 rep load, reduce it at the point of momentary failure and get the remaining reps to hit 8-10. You get the metabolic benefit of doing assisted/forced/to failure reps without needing a spotter or actually "failing". If doing bodyweight one arm pushups for example, you might grind out 4 and do another 4-6 off one knee. If doing pistols you might brace with a rope or pole to get extra reps.
You really only want to do this on the last set of each lift, unless like the example, you are doing a movement that you can't hit minimum 6 reps even when fresh. But save something for the last set, torching yourself every set is a recipe for burnout. 1-2 minutes rest between sets.
You want to make sure you are making good use of the eccentric phase of every rep, even if it means reducing the load.
Based on your specs, I feel with bodyweight and iso you can get plenty strong and ripped, but you are going to have a tougher time gaining mass - primarily because manipulating resistance to stay in the rep range can be problematic. The addition of sandbags at least, suspension gear etc will make this a lot easier to do. With weights you might bust this out to a three day cycle, but for bodyweight and making use of more compound movements a two day cycle will work. Sessions should take no more than 35 -40 minutes max. You're training in a glycolytic state part of the time, so as much of the good and as little of the bad metabolic stressors are what you're shooting for. No puking, but pain and pump OK and you should feel trained but not wasted after a session.
Chest and upper back really benefit from a max compression/shortening of the muscles, as do calf, bis and tris. You need squat, hinge, push, pull. With bodyweight and iso as a limiting factor I'd structure it as:
Day 1 - Squat x2 lifts, push x2 lifts , peripheral x1 or 2
Day 2 - hinge x2, pull x2 , peripheral x1 or 2
Bodyweight examples - I am not any sort of bodyweight guru but here are some examples:
squat - Pistols, skater squats, split squats
hinge - single leg deadlift, back bridge
push - pushup variations galore, dips
pull - pullups, inverted bodyweight rows, scapular retractions
additionally there are heaps of isometric movements that can be done with a rope or towel, and by suspending a light weight such as a ten or fifteen pound kettlebell at the midpoint these are turned into more of an external load resistance. You can hold the free end or anchor it to a door etc and have a poor man's cable machine. Personally I cannot execute intense isometric for more than 15-20 minutes or so per session and my joints don't seem to appreciate a regular diet of it since I've gotten older. So as far as gaining mass IDK - I use iso primarily for increasing speed with very few exceptions and occasionally for variety.
Adding sandbags at a minimum will expand the options greatly to include Zircher squat, offset back squat, sandbag deadlift, bent rows, sandbag floor press. Suspension gear opens up a huge variety of chest and back exercises that incorporate a plank as well, so compound exercises that also target a specific muscle group. Kettlebells will open up a wide variety of exercises and add the swing to the list of hinge movements.
I do not train 100% as laid out above, but I have found I do very well on "sub maximal set based methodologies". Of late I've been drifting back to it more and more. My training log has more detail from pg 3 on.
Lastly - I incorporate swing and some ballistics, but listen to my joints as well. I can see where American swing might cause issues, but the standard swing is good strong medicine. I really appreciate what circular cleans do for me as well.
Lots of variety. Are there some number related to pull ups and dips ?