Newbie looking for advice on vintage RV purchase.

You might want to consider a travel trailer for same money and pull with small truck. Something that old and having the power train (engine trans and drive axle) could cost lots to make road worthy. A travel trailer only needs good tires, brakes and wheel bearings plus some lights to make road worthy. Plus you can unhook the trailer and drive with your truck. I am not saying not to buy this but expect lots of cost to make it reliable.