new transom or enclose w/bracket?

[jwclbi]

The time is coming soon for my 73 20sf to get a new transom, it is the original. I am leaning towards an enclosed transom with the bracket. The problem i have is my 225 efi merc is 20" and has low hours and runs fine but will that work on a backet? I know of the kit to extend the shaft but is that a pain? And if i decide to not do the work myself does anybody have a figure on what they roughly spent to do such a job? Any input would be great, thanks