Hi,
In your shoes I'd look at the Magnum or Victron boost inverters and go with a Yamaha 3000 iSEB.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.