No suggestions other than take advantage of everything they offer.
We had no need for a courtesy car so I can't comment on that. We live in Texas and drove. I did inspect the roof and used the ladder on the 25.3. They also ran it through a RV wash. As far as the generator, we took the Vegas for a drive so we could check out the Ford end of it. We stopped at a Walmart and stayed there for a coupe of hours to check out everything as if "boondocking". We found take out and relaxed there. It was 105 degrees that day (115 heat index). Everything including the generator worked fine. Not sure if they have an issue with running the generator at MHSRV but I would doubt it. They encourage checking everything.
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