They now have a charger/inverter combo unit so I am told. The old was was complicated and costly the reason I was not going to go that way. I had a toy hauler travel trailer that was set up with all the outlets charged, you just had to flip a switch to change it over, not sure how this one will work though.
I can run everything except the AC's this way. He suggested having 3 100 amp lithium batteries, but I an thinking I just may go 2 200 amp lithium batteries then I won't have to be concerned about anything. I didn't want to put this much money into the trailer but being I am going to keep this one I may as well set it up the I want it.