For what it's worth,
My solder guy and myself have the parts rounded up, if that counts.
He picked up one of those HF coupon 3.0 or 3.5HP horizontal shaft for $60, just to have around as a spare.
Naturally, I had a 1HP GE ECM.
Picked up some pulleys to give a couple best guesses for the ratios.
Just need to get it bolted together for that end of it.
I designed a circuit to monitor the battery voltage (LM3914) and increase or decrease the RPM via a gear motor (All Electronics surplus windshield wiper motor, maybe for a Saturn?) and homebrew linear actuator (start with all-thread...).
Not fast regulation, but functional, cheap and easy.
Will probably end up with 2 phases reconfigured in 2 series coils, then the 3 pairs in parallel.
The 3rd phase with all 6 coils seperated and rectified individually.
If the battery is calling for enough amps to speed the motor up to a high RPM, the 3rd phase will cut in with a lot of amps.
Usually, after a short time of all 3 phases charging, I believe the battery bank will not need many amps to keep it at 14.4V, and the motor running slow with the 1st 2 phases charging will be more than enough.
Portable and quiet, mostly quiet, was what got me thinking about it.
Add a big inverter and a pair of golf cart batteries.
Can run circular saws, reciprocating saws, big drills, etc, with the gas motor basically idling.
Nothing I hate more than having a big loud-A$$ genny screaming 3600RPM so I can't hear myself think, just to power a circular saw long enough to cut a 2x4 once every 5 minutes.
I have some smaller PMAs here too, and I'd like to try a tiny version mostly as a house battery backup charger. 5 or 10A would be great. Would be a good fit to a 4-cycle weed-wacker motor.
You see what a 4-cycle weed-wacker motor costs?
G-