This works in both 2" refractors and Newtonians, but it's dubbed the Newtonian Easy Guider. It comes with an unidentified camera bayonet adapter, which I think is for Olympus. Others are available from Lumicon. The guider only adds 7/8" to the focuser height. The diagonal is an Orion Right Angle Off-Axis Guiding Adapter, and it's optically identical to the Lumicon 3X Relay Diagonal. Manual included. All is in excellent condition.
Just add a camera and crosshair EP (not included), and you're guiding!
How does $160 including USPS Priority Mail to the lower 48 sound? I prefer Paypal. This package would set you back $289 + shipping from Lumicon.