Controller for Millhouse River Studio Turntable

I purchased a Millhouse River Studio turntable in an auction of a layout that was being dismantled. Unfortunately, I did not get the indexing controller with the turntable. Millhouse charges $562 for their indexer which is outside my budget. I would like to know if any other turntable controllers will work with the Millhouse unit, e.g. the Walthers Cornerstone controller that sells for $50.

Well, the Millhouse River Studio turntable does not come cheap, so I am not surprised at the price of the indexing controller. Can you operate it manually? Even though my HO turntable had an indexing feature, I found it more efficient to operate manually.

Rich