Verndog - i would HIGHLY recommend you re-consider the use of the Spec-R 'LCD's within any product design. these things are super fragile. when I switched from XRay to TOP my biggest problem was getting an LCD that worked. I'd like to suggest another option to you -- making XRay ECS mate with your spool. This will be much more successful.
Or you could just buy my Side Piece Racing Mira Outdrives that work w/ the TOP Photon 40T pully (and will fit a TC6).
www.sidepieceracing.com