Hey there, I personally don't think you will have much to worry about on getting the bolts out, usually the problem is the last owner overtorquing them and stripping the threads on the aluminum insert glassed into the hull. Several of the Nacs' I've had actually had longer bolts and a lock nut inside reachable through an access port, so if you keep spinning a bolt and it's not coming out...of course reaching inside got harder and harder as my forearms got all Popeyed out after lots of catsailing.LOL
On the tramp issue, none of the ones I had could get re-tramped without disassembly ( this is all from personal experience trying to do it all myself). They would come off, but not back on without several helpers trying to inch the edges into the track while somebody pulls from behind. You do have to drop the mast to get the boat apart, and it's suprisingly hard to mess with the mast with no tramp on, hard to reach up high enough for stepping it, so don't pull the tramp before dropping the stick (guess how I know)! I took off one front corner set of bolts, and the opposite back corner set of bolts so that the hulls would support each other as they slide in to get the slack in the tramp, if you do same side the one hull tries to flop over.
If you have time, the new style tramps have webbing sewn down both edges that either lace to slides in the tracks or directly to the hull. I did my own 'cause I have a sewing machine, laced to slides in the existing tracks. Then you never need to demount the crossbars for tramp repairs. Some don't like it because of the sheets getting out through the gaps in the lacing though...

On the alignment, the toe in/out is pretty set, but you do have to get the bows the same height relative to each other.