Take your time! We just did our PDI on our second new camper since '06. Thought we pretty much knew what was what...not even close. Times have changed, systems have changed, everything is located somewhere different than you're used to. DH and I had pretty much made a plan on what each of us was going to focus on, but that changed once we got started. The tech was very helpful and didn't rush us at all. If you feel rushed, just remind them that this is a big ticket item and you want to be sure you know what's what. Make sure that there is water in the water heater - found that out from our first, which didn't have water already filled. New element from the dealer with apologies. Slide, awning, stove, refrig, oven. Ask that they have some water in the fresh tank and check all the faucets and underneath in cabinets for leaks.
I don't know about overnighting at the dealer's lot, but if there is a CG very, very close, that's where I would plan the first night. We were only about 3 miles away and found a couple of minor things, so we called that afternoon, made a quick stop in the morning and they took care of them right away. You certainly could ask about overnighting. If you have kids, though they may be excited, if you can leave them home, all the better. You'll have enough to deal with signing a zillion papers and then towing a new trailer + figuring out what the heck you've just bought. Plan a Camp Driveway ASAP for them. It's an exciting and fun time....once you get a couple of Tylenol for that headache and maybe a glass or two and a few minutes to relax. Enjoy, the rest is easy(ier).
Trailerless but still have the spirit
2013 Rockwood Ultra Lite 2604 - new family
2007 Rockwood ROO HTT - new family
2003 Ford F-150
4 doggies - We support Adopt/Rescue.
Sam, you were the best!
Cubbie, Foxy, Biscuit and Lily - all rescues!