It will take a dedicated effort to bring it back, but it will come back. I recentley did my 86. I started sanding with 800, 1000, 1200, 1500 and then compound and polish. Start on the transom and work through all grits and compounds. Go easy on corners. You probably wont get all the fade out were the decals are. Line the new ones up and you will never know.
Nice looking S&S.