Looking to purchase first new to us motor home

A couple things I picked up from the video, 1. Possible water damage from the former leaky water heater. 2. Carrying capacity, he shows the document but did not say what the CCC is.

If possible, take someone with you that has owned, or does own a motorhome. By owning one, you learn stuff that you won't learn on the internet. First lesson is... how much repairs cost. How many people take a used motorhome to an independent truck mechanic for an inspection?