[macojoe]

If it was I, I would cut out the splash well,

then from the inside of the boat I would attach Plywood to the transom. From the out side I would just glass layers till I built out to match the rest of the hull. Do tghe same on the inside. Gel coat and done there.

two layers of 3/4 ply glassed toghter will work great.

Bolt the bracket below the the fixed portion of the transom.

Then add your bait tank, then what ever you need to do on the inside, put a trim on the glass to cover the edge, and use Starboard bolted to glass to the floor or what ever you need to finish the job.

Thats what I would do any way. Just remember Starboard can't be glued toghter with out going thur a ton of crap. so it needs to be bolted and the you can caluk the seems to look good!!