picking up our new to us class a Saturday

Make sure you get up on top of the roof and check for any tears or cracks in the roof material or cracked vents.

If you can spend a couple of nights at the dealership or campground very close. Just use all the systems. Play like you are dry camping. Run the generator, inverters, fresh water pump, etc.

Then plan a possible return of the unit to the dealer for 30 to 90 days for warranty work. Not trying to be a butthead. Notice I said "plan". Hopefully you will get lucky and have a unit you can use out of the box. I did. Be reasonable with your check list. Fix the small things you can even if it costs you a few dollars. You'll probably do a better job than the techs at the dealer.

Check tire date codes for age. Check belts & hoses.

most important: ENJOY