There are a number of threads here with advice on walkthroughs before accepting delivery. My favorite suggestion is to find a place to camp for a few days next to the dealership so you can catch and fix build issues quickly.
-- I must be the last optimist on the planet
2018 Winnebago Intent 31P
Roadmaster anti-sway bar Front/Rear, Safe-T-Plus, SumoSprings-Front/Rear