Date registered: Oct 2009
Vehicle: 2000 VW Golf Variant
Location: Leiden, Netherlands
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
The part numbers will be in the EPC (free for US residents). You might want to try salvage yards, because the VCV might be expensive or unobtainable new. If you have trouble I can look in the EPC for the numbers.
I doubt that the transmission can be changed to mechanical control without taking it apart to some degree. Just sticking a rod in the hole doesn't work, because there is nothing inside the transmission to connect to. The 722.118 transmission started with mechanical control, in 1980 it was changed to a vacuum-controlled transmission. MB must have changed some valves and levers inside to achieve that.
The VCV needs to be screwed to the top of the IP (two screws), but I don't know if there are screw holes available on your IP to do that. That might pose a problem, but these holes can probably be made. The other problem if whether there is a connecting piece on the IP lever for the rod to the VCV, but I think that can be retrofitted if it is not there.