I just chose option three and am finishing up the disassembly part of the process.
See here. You're timeline seems a bit short, but I suppose limiting what components you disassemble, paint, and rebuild can have a big effect. I'm stripping EVERYTHING, powder coating everything, and replacing pretty much every bearing, seal, etc that's down there. I'm also stripping/refinishing the bottom of the body while I've got it off (hopefully), and re-gearing to 4.11s.
A couple of things to think about: 1) I ordered an H55F in NOV and was told that there was a huge backlog and that it would take 2+ months to get one.. It ended up only taking one month, but that's something to consider. 2) Are you doing this in Bend? Bc Commercial Powder is 2-3 weeks turnaround on a frame. Mine is there getting just blasted for now and they've had it for 2 weeks already.
I used an engine hoist to pull my body off and it worked OK.. Definitely not ideal, but it worked and didn't damage anything. You'll need to pull everything off the front (fenders, rad, etc) and need another set of hands to steady the body as you raise it and move the chassis out from under it. Oh, and of course, having room to do all of this is key. you need at LEAST two car spaces to do all this (one for body, one for chassis, and more to maneuver the chassis around).
LMK if you have any specific questions. Happy to help.