I messaged an Ali seller about the 110V 800 watt version. It kind of appears they could match the appropriate VFD? Actually 800w would be plenty of power & 110V would offer me some advantages.
Just wish I could see more details, download some specs or a manual. Maybe this is kind of like the oddity VFD @David88 was referring to? Well, at least they replied.
I wanted just the 800W power supply and couldn't find one. FWIW, I don't think the 800 Watt set is a VFD type. I think it is a DC motor and variable voltage power unit.
Here is a link to the Amazon product which provides better info than Ali.
RATTMMOTOR 800W 110V Spindle Motor Kit 20000RPM https://a.co/d/3QPatYo
I agree that downloadable manuals would be awesome. Dont think it will ever happen.