Thanks to all who responded to my post about this.

I may have a lead on a governed motor, and if that doesn’t work out I’ll try an inverter or VFD.

Someone off the list responded to me mentioning they had two 50Hz motors available for a Model 14 or 15.  I can’t for the life of me find that email now!  If it was you, can you please make contact with me again.

Malcolm.