Check the draw of everything you want to run, if they are all under 1600w and you are at sea level, get one of the 2000 inverters. The next step up is the Yammy 2400 and then the 3000 series running 2800w running.
The Champions have done well and the 3100i would stay on the quieter end running loads half it's capacity. There is a newer remote start version but it cost more and weighs more too. We have the remote start version of the champion 3500/4000. We don't use it often but when we do, it sure is nice just pushing a button instead of going out to fire it up.