Sounds good, we picked up 2 small inverter Champions that you can Parallel with a small box, they work pretty well.
Got at Cabellas followed the reccomended break in period, boy was the oil pretty dark.
Think it was like a variable load for so many hours rinse and repeat then dump the oil, now running 5w30 mobil 1. I used some old fashion 500W and 1000W lights that I could vary between the units and monitored with a Fluke Amp clamp.
I know what we have and what $ we have into them and what to expect out of them, I have already have a nice 6500w Honda that runs the house just fine, these Champions are just to use for a flip this house deal to run some lights maybe miter saw and shop vac, the dual set up will also run the nailer compressor from 0psi and restart when at the 90psi, so were happy with them.
I already tried out all the tools and was able to run the saw with the compressor and some LED lights, one struggled with the large shop vac but the parallel one it ran just fine.
They are super light and easy to get out of the truck.
Like you time will tell, but so far only issue I did not think of these are only 120VAC, would have been nice to have a 240VAC, but no big deal.
I think you will be fine, just read the manual for the engine and do what needs to be done. I actually use one of those plastic paint cups with the measurements on the side to fill these up, makes oil changes very easy, I get the large bottles then measure it out and drain and fill is really easy.
Good luck.