According to the spe - it's a 230 Cummins with a 6/2 automatic. It may or may not have a generator, and if it does it's almost certainly propane.
It should be a solid coach. The only problem I'd have is the unrealistically low mileage. It has obviously sat a lot. If it was stored under cover, it probably only needs a full going over - fluids, belts, hoses, tires, etc. to be roadworthy. Figure on spending a couple of grand for all that - double it if tires need replacing (and they almost certainly do, if only from age).
Unless you're an experienced RV'er, I'd strongly consider paying a professional inspector a few hundred $$ for a report. You may lose the $$ for the inspection, but you won't have a $30K lemon on your hands.
If I was in that market, I'd definitely look at it!!
Here's a link to the brochure for the '93's.: