But I'd be more concerned about the condition of that old a "Mobile Home" (built before June 15, 1976) as opposed to a "Manufacture Home" (HUD compliant), built after June 15, 1976. I'd definitely hire an experienced manufactured home inspector to check the understructure (pads, piers, insulation, vapor barrier, etc) and make sure the pier support systems are in acceptable condition, the home is level and there are no drainage issues.
Additionally, I'd be wary of caustic and carcinogenic chemicals in the flooring, countertops, etc and asbestos in the insulation. Lot's of things to consider about homes this old. Also if you need financing you may find that due to the age of the home it will be quite difficult to find any good deals on terms and interest rates.