To the best of my knowledge there are no wiring diagrams for trailers, few motor homes even have one. I suspect you have 8 circuits/breakers in your convertor and 1 master breaker for a 120/240, 50A panel. A 30A breaker panel should have4- 6 breakers. The air conditioner is 1 dedicated circuit, microwave 1 dedicated circuit. Other circuits should be divided to evenly distribute expected loading/amperage draw. The kitchen area outlets should be a dedicated circuit, bathroom should have a GFCI outlet as the first outlet from the breaker panel so it will provide protection to the downstream outlets too.
That is as much detail I have to offer.
If you truly have an inverter, I cannot address that wiring.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"