who has the best fiberglass lid for my 69 cst short fleetside?

who has the best lid for my p/u is it checkmate or gaylords . i cant believe there are not some trucks newer that dont have the same size bed as the old 67- 72 short fleetsides . i tried to buy one locally and they all tell me i have to special order one. i would think the measurements would be the same on some of the 80- 90s p/u,s . any help at all is greatly appreciated.