Transom/bracket/re-power

[FINNERTY]

Guys,
The 1985 23' CC Superfisherman that I have owned since new is for sale on this site with no offers yet. I may be keeping it and, if so, will probably update it by closing the transom, adding a bracket, and re-powering with a Yamaha 225 4-stroke or two 150's. I'd appreciate advice on the pros and cons of the alternative engine setups. Also, has anyone used Matan Marine in Rockland, MA for transom or bracket work? Thanks.