At the risk of sounding like a shill, I'll tell you my story. I started rucking over the past summer. I started with my Camelback pack and added a wimpy 10 pound weight plus 1 liter of water. I took this hiking and was immediately hooked. I decided to go ahead and spend the money on a Goruck pack. When I first saw these packs some years ago I had sticker shock - it was $200+ for a backpack. Fortunately the price hasn't gone up much, and since money was not as big an issue today as it was several years ago, I went ahead an bought one. I purchased the "beginner" set consisting of a pack and a 20-lbs. ruck plate. I briefly did some comparison shopping and saw that most "military-grade" rucksacks were in the same price range. For the beginner set I spent $286. Yeah, not cheap, but I do not regret the purchase at all and here's why.
- Goruck said that they redesigned the straps so that they would not rub your shoulders raw. So far I've had no issues with the skin on my shoulders. This is a real issue. Goruck had a clearance sale on their plate carriers so I bought one. Yes I recognize I have a problem because whenever a fitness product is on sale I'll buy it whether I need it or not. Anyway, a plate carrier is a thin pack that will only fit a ruck plate and nothing else. I guess the clearance ones did not have the same strap redesign because it did rub my shoulder to the point where it broke skin. This is not a problem in colder whether where I wear a fleece jacket and I only use the plate carrier for shorter walks around my neighborhood.
- The Goruck pack has a built-in pocket that will securely store a plate, keep it from moving around., and it sits high on your back. These are comfort features that really make a difference on longer hikes.
- It's pretty roomy and always me to store a rain jacket, water bottles, and some protein bars. I went hiking almost every weekend last summer and once I hit the trails I could end up miles away from my car. Being able to carry "supplies" was very important for me.
- The back of the pack has padding which includes a lumbar pad where the pack contacts the lower back. Once again this makes things comfortable for longer hikes.
- The pack is rated to be able to hold 75 lbs. No, I'm not ready for that yet, but perhaps in the future.
I am very happy with the Goruck pack and ruck plate and would buy again. The comfort features are huge for me. When I go for longer hikes on rocky terrain I don't want to be distracted by an uncomfortable pack.
My one complaint is that I wish the packs came with the hip belt already attached. You can buy a hip belt from Goruck that attaches to the pack, but I that's extra money. I can still be a little cheap.
If all I wanted to do was go for walks around my neighborhood then I may have gone with a less expensive pack. I might have even gone with a weight vest. But because I like to hike in areas were I could be miles from civilization, i.e., my car, having a comfortable high-quality pack was very important to me.
When I'm ready to add more weight I'll probably use additional weight plates - plain old plates not more ruck plates - or I would make small sandbags. As some have mentioned, a kettlebell would not be comfortable as its shape would cause it to dig into your back. In your case I'd go with a bunk of mini-sandbags.
For footwear I use trail running shoes. I wear good hiking socks - I learned this the hard way when I wore a cotton socks and got a blister. I have no issues with hiking socks.
Whatever you decide on equipment, rucking is great.