whats up EDloc don't know to much about fiberglass work but have a close friend i that buisnes that would be happy to answer any questions you may have if your interested ican e-mail you his number. He has a older boston whaler 26' guardian we removed the looper 140's it came with he closed the transom I built him a bracket and we installed a pair of 01 225hp johnsons, its like a new boat.