Hi Chris,Do you know if I could run the 120 volt loads off the inverter directly and use Autotransformer to step up 230v loads. Or Would I be better off running everything through the autotransformer?
I would run it all through the Autotransformer, and feed the output of that into a standard electrical panel for both 230V/120V loads. That also makes the Autotransformer 32A (or 100A) breaker a nice single disconnect for all loads. The Victron Autotransformer manual shows how to wire this up, and get a step up from 120V to 240V (and 120V).
Also, Victron publishes this, which I highly recommend. There's a lot of good information in that one page
Good writeup on how/why an autotransformer is here. Although this is on a boat, the fundamentals don't change.
Good luck!