I think my last paragraph sums up what I've done - this (so far) is the best option I've found. My second choice would be an open-loop AC controller capable of driving a 7W, 600 RPM AC motor, preferably a Premotec or Airpax/Phillips - lots of heavy lifting involved with my second choice.
Contact Thom. You'll be pleased.
Contact Thom. You'll be pleased.