Could it be a Dolphin? A couple months back there was a Dolphin mounted on a dually Datson of a similar vintage for sale
about 3 miles up the road from us. It was perhaps a couple of feet longer (a curb side door just fit between the rear wheel and cab) with what I recall as very similar design and graphics (don't recall a portal window, though). The engine didn't run and the truck's front end had been wrecked with very poor body repair work done (missing all trim), and the inside of the camper was pretty much rotted from the inside out due to long-term roof leaks
. They only wanted $500, but I'm not sure it was even worth that for scrap. It sat there for months, but it's gone now, don't k ow its fate. It's a shame the owners let it get so torn up and run down, because I'm sure it was a fun motorhome and made a lot of memories for someone back in it's prime.