Well I am only using common sense, but is there any problem with using an existing controller+driver from an ffb joystick (MS ffb2) and attach stronger motors to it? Theorically some signal amplification could do the job. Mechanically only a right gearing is needed to put out the right deflection to the stick.

Anyway it is all just thinking for me. I don`t plan to start a new build in the near future. I will be glad enough if I can finally finish this one smile