I got some information to my own question that may be helpful to others. Lazydays does not have an "official" pre-purchase inspection. They referred me to their standard service packages which range from $700-$4,600 (diesel). While these might be useful after the purchase, I am not trying to pay to service an RV that I don't own yet and may not pan out (even though it is highly likely that it will be fine). So that is out for now.
My search on Craigslist turned up a couple options but I could not find any validation for them on the www.
Any other suggestions or recommendations? Camping World? Although I have not heard stellar things about their service competancy on these boards? Someone could probably start a business with a locator site for this kind of service (maybe that will be what I do to get out of this office