If you doing three days a week with those three moves, you might not need much else (depending on what you want). If you really go after three day a week minimal training, you begin to wonder what you have been doing the rest of your career. I can tinker forever with your idea, but can I suggest, maybe not right now, but a two week block of just those three moves? Then, slide in the extra swings as advised for maybe two more weeks. Just a four week "look" at things to get a sense of what is working.
Long term, here is an idea:
I have been suggesting this as a "warm up" or whatever:
5 sets of 15 Swings with a Goblet Squat at the end of the 15. A long prying squat...finish well. Toss in a few Get Ups and you cover basically every human movement when mixed with PTTP.