You're gonna need 3 saddles, 8 climbing methods, 3 loc ons, 4 climbers, a tripod on wheels and then you'll be ready! Lol.
I hunt out of a saddle. Have been for years. They are comfortable after you get in saddle shape. lol. It's like wearing a new pair of shoes in. The first sit or three every year is uncomfortable then you will be fine IF you have found the right saddle. You can hunt any tree your willing to put the time in to climb.
Loc ons use the same climbing method as the saddle so that's a plus but with my fat arse I haven't found a light loc on I likes for a full sit.
A summit is out of the box comfort. But I always thought it was a pain to lug and I hated hitting my gun on the climber in the dark. You need straighter, limbless trees If I only hunted a handful of times a year I would use a climber. IMHO.
For the power lines and the marshes I made some wheels for my tripod I wheel it in, stand it and hunt. Put the deer on top and wheel it out. Works like a charm.