I've been using a portable inverter for our computers and such but it wasn't a very slick solution. The challenge was how to integrate an inverter with my existing shore power/converter infrastructure.
After some research I decided to go with a Xantrex ProWatt 600 with remote switch and Xantrex inline transfer relay. This setup would allow me to keep both systems in parallel without having to manually switch the power source. The transfer relay automatically switches to shore power in the event my inverter is on.
The only unforeseen issue is the breaker for the converter/charger must be off or the inverter will try and charge the battery through the converter. Not a big deal, I never use shore power and it's a small inconvenience if I do.
Purchased components. Xantrex ProWatt 600, Xantrex inline transfer relay, 80amp ANL fuse, 4awg wire. Approximately $250.
Where to put it, here's a free spot.
Installed and secured to couch frame.
Remote switch integrates nicely with SMB panel.