PLUS : Have the rad flushed and new coolant put in ,hoses checked .
Fuel filter along with fuel filter for Generator.
Wiper-blades and windshield washer fluid even tho summer coming on may run into some weather.
Check all lights , check headlight adjustment now instead of finding out on the road at night and they are way out of adjustment !
Like Busguy22 commented do an trial run overnighter at least in your driveway to make sure everything works.
Get a screwdriver and open every cabinet , drawer etc and check every screw from top to bottom , pull the drawers out and check the runners/brace mounting and tighten up if needed.
With the drawers pulled out look inside , on both used MH's I bought there were loose things IE: screws ,nuts, bolts, other things from previous owner that fell down behind and rolled around making noises.