Hi I have a rear folding seat off a 1999 sea ray 290 sundancer, this may work for your boat all so, call or text for pictures. I am located in old saybrook ct. 06032
Thanks Dave cell 860-919-6473
2004 42 Sundancer
Hydraulic platform
Cockpit air
KVH M3
Engines
450hp Cummins
I have that seat, it doesn't really fold up, it is mounted on hinges to just ride up with the engine hatch. It is really a very simple piece to have fabricated, if you want measurements and or detailed pictures I can provide.