All the basics for any AS... set up on their premises yourself and prep for travel. Repeat. Stay overnight on site or nearby with appointment to return next day or have the dealer techs come out to you.
Use all of the things in the AS. Doors, electric both 12VDC and 120VAC.. and converter , Inverter... appliances on LP, AC, etc. change LP tank supply...
Open doors.. I found several on demos which had issues like pinching hands, fingers while opening microwave, fridge, etc.
Learn how to winter prep... learn how all the water supplies work...drain.. fill, how to bypass water heater..
Learn how to replace water filter.
How to flush black tank...
How does AC / Heat function?
How to deploy /stow tables, beds, drawers, awnings..windows!!!??? Emergency exit..
Tire replacement.. etc.
Peace and Blessings..