Has anyone come across a good set of instructions to rebuild 69 seats?
Looking to do the driver side first then if it comes out acceptable move on to the passenger. I'd like the seats to look period correct, so not planning for aftermarket Recaros or such. The seats were re-covered about 10 years ago and are still in very good condition, however, here are some issues I have with the driver's seat, listed in priorities to resolve.
1) seat angle too inclined, is there a way to get it to recline in multi positions, or at least less inclined?
2) seat sagging, probably needs new springs, is it that simple?
3) head rests, they are currently way too low and they don't seem to lock in a higher position, which make them functionally unless. Can be be repaired and how high can you get them?
3) seat too low, I'd ideally like to be an additional 2 inches higher off the ground, but will settle for an inch or so
4) seat extenders? do they work? I'm 5'9", with a 31" inseam and need to slide the seat pretty much all the way back, which means no one can sit behind me.
5) adding in 3 point seat belts, does anyone find that the shoulder belts fall off and you need a guide? If so, so does someone sell a guide which attaches to the seat head rest? Car is a convertible so mounting points will be lower for the high mount.

I'd like to keep the changes to less than 1k for both front seats if that helps.