Looking for a very small breaker panel for my RV

I am looking for a small breaker panel that will take a 30amp main from my inverter output terminals and has room for at least 2 @ 20AMP breakers to protect the coach outlets. It needs to be surface mount and "pretty small" to fit into the inverter compartment area. The old inverter had two built in 20 amp circuit breakers for the output lines, the new higher capacity inverter does not have that feature so I need to protect those 120 volt circuits very close to those output terminals. I would need a minimum of 3 spaces/slots one for the 30 in and two for the 20 each out.