Ok, A slight change in plans. A Series Five Micrometer arm, with pretty much the exact spec I wanted popped up for sale. Thanks for contacting me Pierre.
On to my next crazy idea. If I can, I want to use the stock Thorens arm lift with the new arm. If I drill a hole in the location of the red outline on the arm board, and remove the reg arm lift from the arm. I believe the factory arm lift will pass through the hold in the arm left by the removed reg lift.
I will have to figure out height, and exact alignment once the arm arrives. But, I think its doable. I may have to 3D print a bracket, to mount the arm lift mech to the sub platter. I love a challenge.