Must be a "Park Model". Just measure around underneath and you can prpbably mount some, but major PITA. Tanks are costly also plus the plumbing, straps etc.
Was this a park model? If so might be missing more than just a tank. Make sure the mounting is secure as you install the tank. Full I would guess the tank weight to be in the 300-400 pound range. Good luck.
2003 Jayco 308fbs eagle 33' tt, towed by a 2003 Ram 3500 slt, quad cab dually, cummins diesel ho, trailer towing package, with 6 speed manual. Hauls better 1/2, 3 kids, myself, and a 2003 ez go clays car.. I have added so far, neon lights, clearance lights, back up lights, black light, lift kit, mud tires, and everything necessary to make the golf cart street legal. It's now ready to spend the winter in the garage for more mods. More neon, strobe lights, alarm, a pa system, maintance, and whatever else that comes along. This golf cart does wheelies and travels thru 7 inches of mud when need be. Two honda eu2000i gens twinned to supply the electrical power. Latest addition an 04 Honda Goldwing. [url]http://www.hometown.aol.com/rvnagain/myhomepage/profile.html[url]
Does it have the other stuff to be used dry camping? Gas Refrigerator? Could it have been a FEMA trailer?, as many of those didn't have holding tanks, etc. Price sounds good if it's in good condition.