Hi guys, "testes with a clamp" yes that is quite the typo!
I do plan to get house batteries later down the road. I have just started my conversion so first phase is to get somewhat operational so I can start having fun. I've read enough and watched enough videos to see that this is a multi year project...as they say "there is always something to be done on the bus"
I don't want to damage anything so I think I will find the power connection to the independent AC unit and connect it to its own manual transfer switch. On the other side of that transfer switch I'll put a 12v battery to handle expected peak amps when the compressor kicks on. I'll put the convertor to that battery as well.
That way I don't put the starting batteries nor the entire electrical system of the bus at risk.