I did something like this but with a single duplex receptacle. A typical residential 20 amp duplex has a sort of "bus" that connects the two outlets but they each have screw or push connectors. If you cut the "bus" then they are two independent outlets. I attached one outlet to "house" power, the other to the inverter outlet. I then labeled one "house" the other "inverter" I didn't have room for another dedicated outlet. For the main entertainment center I used a plug strip, and moved it from house to inverter or back as the need arose. Remote switch was a toggle inside the fuse panel. I did two of these, one for the bedroom, one for the main area.