I am thinking of buying a 2000 F250 XLT Super Duty,7.3 PSTD, auto trans w exhaust brake,RWD, limited slip, tow pkg,rear overload springs, firestone rear spring air bags, 2006 Lance 915 lite, no genie,...
^1991? Chassis wise it'll handle a 3000lb camper and could be fairly relaible if it's a low mile museum piece. But, at that, it's an almost 30 year old truck. Better balance your expectations and budget. One thing that's guaranteed is it will be underpowered.