LOL...I know, I know.
I told her that we would be rationing power and using only a certain amount of things at a time.
Her response to that was....get a bigger generator...
Hell, she's paying for it, I just get to do the leg work.
If wifey has money to burn, you might as well make a little profit for yourself in this.
Find the capacity of your electrical service, double it, find a reputable responsible contractor, tell him what you want, the best equipment, dual fuel complete installation, take his bid, add 25%, and tell wifey to pony up front.
Plus for you, no income tax on your cut!