Re: new seat uppolstery?
I just did the same thing with my 79 formula. Actually, I did it twice.<br /><br />The first time I rebuilt the rear bench/ engine hatch out of CDX, coated it all with resin, wrapped it in marine vynil and the mouinted fold down fishing seats to create the rear bench. The problem was it was heavy to lift to get at the engines and the battery switches. So I rebuilt it recently.<br /><br />This time I again started with CDX but coated it with several coats of Poly. Then I installed a hatch in the center of the bottom so that the hatch could be opened for quick visual inspection of the engines and getting at the battery switches. I wrapped the whole thing in a good padded marine vinyl. I then used premade marine cushions made for igloo coolers to create a more straditional bench seat. The cushions come in a bunch of sizes, are about 3" thick and made of closed cell foam. They are not very expensive and are very well made including nice piping. You can find them anywhere just search for cooler cusions. I mounted the cushions to the frame using marine velcro so they can be quickly put on and taken off for storage. The whole thing cost less than $200 including the stainless steel piano hinge which mounts the overall structure to that back.
