I had to re-bed the rub rails on my 1976 H25, not sure on the 81, mine is through bolted and holds the deck to the hull.
Check for core issues around the mast and stanchion mounts, I also had some repairs in those areas.
Check for cracks around the top of the rudder post too, I did some touch ups on mine.
Those were the important areas I had to deal with, everything else was just personalization.
Sails can be had if you look, I just picked up an almost new main for $200
Feel free to contact me