Little or no mechanical knowledge or capability

Since I have no skills- buying new with a factory warranty was imperative for me in addition I purchased a 6 year extended warranty (MH and engine)
Currently Winnebago has a 3 year factory warranty on their diesel motor homes
and
"Freightliner Custom Chassis offers the assurance of the industry’s most comprehensive warranty coverage: a transferable, three-year, 50,000-mile limited warranty with towing and roadside assistance—and no deductible whatsoever."
Chassis is the engine and drive train