raise or enclose transom

[gabe]

I have a 76 20' MA. I want to repower with a 25" shaft and get rid of the 20". this means either raising the transom 5" or closing it in and adding a bracket. I wanted to get some feedback to help make my decision. also i live in south FLA any recommendations on who i can talk with about cost to have this done. I don't have the fiberglass knowledge to do it myself.