Very definitely have someone with good knowledge of motor homes check it out before buying. Also check the age of the tires. It is generally recommended that 7 to 8 year old tires need to be replaced especially of the MH has low mileage and the one you’re looking at would be considered low for its age. If you can find out who owned it before the dealer see if you can contact with them for maintenance records.
I have a 1998 30’ Winnebago Itasca that has 111,117 miles on it. Of those in the 10 years I’ve owned it I’ve driven 58,000 miles. Up until two months ago I’ve only had routine maintenance (tires included).
Dave