Purchased my 84 Supra Rider last year before learning about the common stringer rot problem. Discovered a soft spot in the floor under the passenger side rear seat area extending toward the front of the boat. Figured my stringers would be rotten. Took it to a local shop for floor work and I got to see what is underneath the old floor this morning... STRINGERS IN EXCELLENT SHAPE! The foam (polystyrene) is all dry and in good shape as well. There is a 2x2 cross piece that had some rot and had to be replaced but otherwise everything looked good. Shop is going to drill drainage holes in the old stringers to allow drainage between compartments and will resin coat the drainage holes. I am also going to have them make the floor sections above the exhaust outlet area removable so I can access them in the future if needed. The new floor will be 3/4" marine grade fiber-glassed on 1 side (purchased this way) and resin coated on all wood surfaces. Not replacing all the floor, just what you see removed in the pics. My stringers are solid 2x6 boards; thought they would be plywood?? Getting new carpet of course and replacing all the old blue upholstery while it's there. Any other recommendations while the floor is up?