Had this stick since 2002, not sure if its a WICO, wouldn’t know how to tell the difference
Its missing a few pieces, but it would cost only 5 bucks to buy them from Happ.
Here are the Happ part numbers
50-0318-00
50-0340-00
43-0223-00
50-0337-00 (Wood) OR 95-2470-00 (Metal)