I have a 10hp rotary phase converter I've been meaning to unload. PM me if interested. It's a serious bit of kit, probably above UPS weight limits, but we could ship in a few boxes. It isn't the cheap $200 Amazon static phase converters, but a true balanced-phase inertia rotary unit, although I'd be fine selling it at $200 with an idler motor (I have no need for it anymore). I think the idler I have for it is a 900 rpm 7.5 hp unit, as I usually tried to find low-RPM motors to use as idlers, but I'd have to double-check that.
That said, I eventually converted each of my 3-phase machines to single phase. Big single-phase motors aren't cheap (I was dealing with 5 hp vintage stuff, so... 400 pound motors), and direct drive conversions are the stuff of nightmares. But if your machine is belt drive, it's a pretty easy matter.
Do note that bandsaws do NOT play well with regular cap start induction motors, which make up about 95% of modern single phase AC motors. Most want an RI motor to handle the starting torque of a bandsaw. They're out there, but they're not cheap!