I remember my Nakamichi TX 1000 DD pretty well. It was a wonderful adventure having restored this unit I discovered in Hawaii, first loosening the leaking battery thus avoiding any future damage to the circuits.
The special centering technology uses two motors in the lower platter in this way moving the upper variable glass platter in the correct position as having measured the deviance of the spindle to the hole in the record by the golden side stick which runs the operation before the record is played.
The feet are air dampened. Nevertheless a good base is always needed if you are looking for serious decoupling.
You may use a second arm. I had prepared two more bases taking up a SAEC WE 8000 or a FR-66s.