I opted for a whole house inverter/charger. It powers the entire camper, but obviously I won't run the A/C due to battery limitations.
I have a ProSine 2.0. (2000 Watt)
Truck campers present some challenges for installing big inverters due to space limitations, access to the AC wiring and location to battery bank - so it may not be feasible to install one in an AF990.
With your plan of full-timing in your 990, I'd recommend a Pure Sine Wave inverter. Some devices won't run properly on modified sine wave inverters.
