I have been thinking about this for a bit and decided to go my own way with a CC. However, I want it to attach to the forks, as opposed to the gearbox - like the original EMPI's used to do. So here is idea at this stage (including a mid-mount):
The plan is to have the brackets laser cut from 5mm mild steel, and then welded up together as shown (Might add an extra gusset in the middle). To fit it to the forks, my plan is to drill into the forks and install steel M8 rivnuts which allow the thing to be bolted to the underside of the forks. Everything else works exactly the same as the other types of CC. Just need to find a suitable leaf spring and some straps for the swing arm tubes.
As far as I can tell, the forks are hollow, and are far enough away from the gearbox mounting frame bolts, so shouldn't present a problem for drilling.
Any thoughts from the forum?