This is the tech 2000 dob driver. It was installed on an 11" dob recently. It is complete and ready to install with 2 exceptions. For the quick release portion it requires a piece of UHMW or Teflon about 2" x 4" x 1/16". There is an aluminum plate that is included that will show you how big the piece is supposed to be.
The second is the threaded plywood insert for the quick release. IT is a 3/8 - 16 thread for 3/4" plywood(I couldn't get it out of the base). Both of these items are readily available. I have used it and it works perfectly. There is more info on the tech 2000 website. I will try and answer any questions. Paypal prefered but MO okay as well. They cost about $650 new. $300 shipped CONUS