This is the response I got back from Big Dog Parts:
We specialize in Big Dog parts and they only had 100 bikes made just one model over the course of 3 years with the X-Wedge so the parts we don't even list some of the stuff.
I will work on trying to get an X-Wedge section on our website just for the Morgan folks.
Most of our stuff is original not accessory so cam upgrade, and roller rocker arms we don't have. Not even sure what you guys need really. Seems the X-Wedge is reliable we hung onto these parts for the guys with the bikes but we haven't heard of anyone breaking down other than cam belts breaking.
[i][/i]