So should I plan on taking everything apart?
Depends on what you're going for. If all you want to do is to get it on the road, you can just address the most pressing issues, do a quick de-rust and touch up on rusty areas, and slap it all back together.
If it were me, though, I'd go ahead and strip it as far down as possible (short of cracking the engine unless it needs it) and get everything taken care of at once. Far less chance of something coming back to haunt you some day.
Re: stripping the frame, if you have media blasting services available to you and it's within your budget, I'd go that way. If you want to save some bucks you can strip it yourself but it's tedious and time-consuming.
Powdercoating prices will vary, but if you want the ultimate in durability that's the way to go. Paint will certainly be less expensive but will scratch easier (particularly during engine installation
) however paint can be touched up, whereas powdercoat cannot.
You can drop the whole front end as a unit if you want, just pop the top triple tree and remove the steering stem hardware, then slide the fork assembly out of the headstock. Of course, if you need to service the forks you're better off pulling the legs off and before pulling the trees off.
You don't necessarily have to do anything with the swingarm bearing unless you want/need to. If yours is worn you'll need to get that sorted but painting hte frame does not necessarily require a swingarm bearing replacement.
If your tank has bubbling paint, check it carefully for leaks AFTER using the evaporust. You may find that the rust is all that's holding the tank together in places. Hope can tell you how much it sucks to have a leak develop after you've got the tank repainted.
cheers
mystic_1