I have the following Hewland Mk parts for sale:
New HC8-216 MK 8/9, FTR, JFR Inner cam track for cam and pawl LSD $500
Used HC 234 Hewland layshaft and spacers, for all slide on gears , 7/8"-14 thread $250
New HC 2363 draw bolt, undrilled $25
Inner cam track is also on ebay, so you can go there to check out photos.
Regards,
Rob