Does that mean you are looking at used Scamps? Somewhere on this site is a Buyer's Checklist, or inspection sheet.
Others are experts, but look for a solid feeling floor with no signs of water damage.
Look for signs of water stains, leaks
, damage on walls, ceiling, upholstery
Check that all appliances & mechanical systems work.
Check all electrical
Check all plumbing systems.
Consider taking the propane
tank from your gas grill to the inspection, in case they have no propane
Check door and window seals & functions.
Check the outer shell for major cracks, damage, & repairs.