I am restoring a 1990 Skeeter SD 80 that has abeen neglected. I have never restored or repaired a fiber glass boat. The carpet on the floor has rotted away showing a thin fiberglass sheet. The area over the trench for the hoses leading to the forward livewell is flimsey. Is this the way the fiberglass sheet should be and when the carpet is replaced will it be able to support a persons weight or does another sheet need be applyed before the carepet?