The backrest on the rear seat of our 370da is in need of replacement. The old canvas apparently let water seep onto the uphostry and rotted the wood behind the cushion. I had my local canvas guy take a look at it and he says he has not had good luck with that style of wrap around upholstry. Anyone have any suggestions on what I should do? I want it to look factory verses the straight cushion that he wants to do. You will have to forgive me on how dirty things look, the pic was taken at the p.o.'s slip just before I rescued this boat. Thanks