Welcome to the board!!
I have a 75 V20 and is the same config as yours.
With one twist, it use to be a I/O and I converted to outboard via a bracket
Ck out my gallery for some ideas, but it sounds like you know what you want already!
I have the same gas tanks and I have another 25 gal tank were the motor use to be.
Check out everyones gallery's!! There is plenty of ideas and nice looking boats!
http://www.wellcraftv20.com/gallery/...umName=album09