Nice DIY setup and some nice inverters, both the one you linked and ones up to 5,000W that Amazon shows me.
1800W and 20A should cover most use cases. Our setup is 30A and 3,000W which I guess mostly lets you run more stuff at once.
I’m already starting to think I should have gone bigger though. It’s looking more and more likely that any EV charging station I will put in will be 2-way, which means that I’ll have over 100KWH of storage, at which point you have the battery power to run things like electric heating or cooling, electric dryer, etc, for several days.
But as always, if you build everything to future proof it, your costs go up very quickly and half the time the future ends up looking different than you expected.
