For the ones that do not have an Android phone, try Jim and Melinda Tanners's PDI check list. Made for trailers/fifth wheels, but most is applicable to all RV's. It does take four or more hours to complete. Dealers do not like it. Many have see the print out before. It is a very good one. They test and report on many RV related items and I have purchase a couple based on their review.
I checked and one person added that you should check all windows. Open and close all of them an open and close all shades to make sure they function properly. Do not expect to sign prior to the PDI. PDI is pre delivery inspection
! Demand, if you need to, to do the PDI before signing. Do not be disappointed if you find things that need to be fixed. Tell them you will not sign the final paper work until and only when they are fixed and it is reinspected. This is your only power. After you sign, they will fix it in their time. Some have taken months and never addressed any to all the issues. Most do the work much more quickly and are honest, but the quickest is when they want you to sign.