NADA and RV Trader.
With NADA, you don't add value for things are typically standard for the model.
Like oven, a/c, entertainment system, furnace, water heater, and so on.
You can add value for options or upgrades, like a 15k a/c, instead of the standard 13.5k a/c.
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package