I went a different route. I bought a low hour Honda EV4010 watercooled RV generator and built a generator compartment for it. It's 216 lbs, but made to run for days on end.
I see too many people buying replacements for the hondas because they get stolen at large events.
Plus, All I (or my wife) have to do is hit the start button and fire it up when we need juice. It's 4000 watts, and will run everything at the same time. We have a 15K Carrier Low profile Heat Pump.
Just a different perspective. Don't get me wrong, If I went the portable route, dual Honda 2000eui's are the way to go.