Perfectly good Johnsonian Type III equatorial platform for sale. New price: $895 plus $85 shipping. Original owner. Have box, manual, control, packing. Works well-- replacing with larger platform. This Type III rated to 14" primary, 120 pounds. Made of stainless steel, not wood.
If you have a Dob and don't have an equatorial platform, you are missing a huge aid to observing! The Type III will track 45-50 minutes on an object. Supposedly not great for astrophotography-- I didn't try, since I am a purely visual observer.
Can be reset to your latitude (if higher than 33' N.) Reset can be done at factory, or by you with instructions included in manual. Photo available on request. Email if interested!