Taksil,
I would try emailing Marigo to see if he has any. If you need me to measure the heights of the cones feel free to ask. It can still be done with other cones. The ones that I used previous to the Marigo were By "Audio Selection" made in W. Germany. I don't know if they are still around but they had hard plastic bases and metal cones on the top that adjusted via thread. They worked quite well once the feet are removed from the motor base.
Has anyone tried any turntable mats on the WTT?
If so, what sonic improvement has resulted, and are you still able to use the WT record clamp?