Sachs Right Side Engine Cover

[olebmw]

I need the above cover for a 80 cc engine. The part number on the inside should be 0211 127 200. It is for a 1967 Hercules Boondocker.I also need some measurements to fabricate the exhaust as all I have is the head pipe. Anyone in this group have one of these bikes that can take some measurements? Thanks,Dan