I found the cleanest solution to the inverter install was to keep the circuits separate and have a completely separate AC outlet from just the inverter.
I even have one that is colored red so we know its the inverter powered outlet. And the remote inverter power switch is right beside it.
When your dry camping your not going to run many things off the inverter if possible because the batteries will be depleted and you have to fire up the generator anyway.
I put it near the TV area so I can run the TV and charge things up like phones, laptops,tablet, etc, if I need AC power elsewhere I just use an extension cord.
If I need to run more AC things like microwave I fire up my generator.
Here is my
inverter install if you'd like to see what I did in my Cougar.