Not the easiest angle to see from but essentially, it's a few easy steps (pardon my lack of incorrect terminology):
You will have to purchase a steel rod, flat piece of steel, a knob, and hitch pins, although a bent nail works also
1) Remove the vend motor but keep the boomerang looking piece
2) Drill a hole through the side of the machine the same diameter as the steel rod
3) Cut the rod to length (8" maybe? I can't remember)
4) Thread the outside end of the rod to whatever diameter your knob opening is
5) Drill a hope (a drill press is recommended) through the circular opening on the boomerang
6) Drill another hole, the same diameter, through the rod
7) Align the two holes and insert a hitch pin or bend a nail
Cut the flat steel to length and drill a hole on both ends to match the size of the nubs on the boomerang and upper vend mechanism
9) Attach the steel piece to the nubs
10) Attach hitch pins to the provided grooves
11) Attach a hitch pin over the rod right against the inner cabinet, this will prevent it from shifting left
12) Attach you knob
You're done!
* The flat piece of steel will most likely need to be grinded down. You can see the middle of mine is cut back and the bottom corners were rounded off as well. This part is really trial and error until it no longer hits the door.
And there you have it, a way to still use the machine without a vend motor. If someone follows these steps and notices that I didn't include a step or something doesn't work, please let me know and I will edit the steps