Being new to this site you may not realize it, but there is a sticky-note available for you to download and print that will contain every single imaginable item on a PDI you want to look at. And I might also add, unless you and DW are familiar with RV's and their workings, pay very, very close attention when you do the walkthrough with the tech. Ask lots of questions! One that came up just a couple days ago is "How does the TV attach to the bracket on the wall." Don't let the person rush you through the event. It might even be good to let him/her finish and then come back in an hour and answer the rest of your questions.
Congrat's on your new purchase and good luck. (Find out what model hitch you're getting!)