Why not use 12 volts for your camper. 12v items are more and more available today . Microwaves, a/c , will require a generator /or shore power anyway. TV 's are 12 volt, lighting and most everything e...
I thought that inverters were very common at least for the entertainment center for some time. Both our first coach, a 1990 Bounder and the Winnie have had them as standard equipment. I did convert all the entertainment center to 12 volt units but I'm sure there is something we could use them for. Charging the laptops is one.