I am sure that S&S used parts from other large production engines in the X-Wedge, why wouldn't you for a low production engine rather than making unique parts? S&S don't seem to be keen to release this information, even though they don't support the engine now. I suppose that trawling through the parts catalogues is the only way? Good luck GLLOQ and if you feel like sharing your finds I will be very happy to add them to the Alternative Parts List.
