http://rvtechcourse.com/ these guys might be able to point you to a certified inspector.
I would have camping world do a full PDI with you. That means Pre Delivery Inspection. It is their standard procedure, and they will have specific people supposedly trained and familiar with every system in the coach.
Every box, button and switch, they should show you, and you should see it work and remember how to work it again. If you need to, video it (or have your DW video while you pay attention...)
You need to see everything work, and understand how to repeat it.
we're talking a lot of stuff, these are complicated machines with many systems.
I agree with the poster above regarding the value (or lack of) of an extended warrantee. Odds are pretty good that everything that works today, will also work next month and next year.
