Willy, til the guy by the RR tracks comes thru, check these out...totally self-contained...no plumbin', thru-hulls or NUTHIN'...all you need is 12 volts...I've been usin' one of these for YEARS...
http://www.fishing-boating.com/livewellsystems/
And will accommodate Super-Model seating...although wouldn't advise strenuous activity w/ Super-Model while on top of bait-tank :o 8)...