Hello Dave, I have the same idea as you have. I have an original well tempered turntable 1990 vintage with the square motor that I would like to use for mono recordings but I am looking for a Well Tempered dealer to set up the WTArm with a mono cartridge. I recall of a dealer in downstate Illinois, but cannot remember his name. Hope somebody out there has some information. Trying to find a WTLab dealer that also has a cartridge you can afford and that also works with the WTArm is not easy. Good luck with your project, let me know how you progress.