With the 9160.. IF it has the optional charge wizard (If not, Get one and plug it in,,job needs one screwdriver) you have the world's best battery maintainer already..Leave house batteries in place and plug in.. If you wish to save electricity (parasitic power to TV et-al) turn off breakers for all but the converter (or if the converter is like my 9180, a plug in model,, Just plug it in (Requires a special extension cord.. Ask if you need how to make)
Next question: Battery control center... Some have Bidirectional Isolator Relay Devices (BRID or equal) If yours does... That will handle the chassis battery as well.. If not,, Add a Trick-l-start to handle chassis battery.
That is how I did mine Plugged in the rig and let the 9180+wizard handle both house and chassis via the BIRD.
Home is where I park it!