Welcome red I am new here also and a Vantare Owner Woot Woot !!
I cant answer your inverter question my is Auto in the 2000yr , twin 4000 watt I belive, they are pretty interesting the more I learn,
I can even set the shore line amp draw, Any way I found out after several doors and drawers were opening on the road the latches with the hook come in different lb I think 5 10 and 20 I bought all 20,
My big glass doors and large closets even the batroom door uses them I replaced them all and everything is solid now, And my little wife gets a workout just trying to get them open