HMS Beagle wrote:
IThe best inverters are Mastervolt and Victron, but expect to pay for them.
Unfortunately Victron doesn't make a high power compact inverter. They have small inverters that wouldn't handle stuff like a microwave. Their Multiplus 3000 is an outstanding charger/inverter capable of endless configuring and monitoring but it is huge for a truck camper. It is really a cabinet.
I think the Aims is a reasonably priced inverter/charger. The OP mentioned possibly going to a Lithium bank and while not programable it does have preset battery settings that closely resemble recommendations for charging LiFePo4 batteries in terms of bulk and float.