The other option so you don't lose any parts would be to rig a free vend switch. I can't remember who on the site sold me the one for my 64 but it works great. It is wired using the info in this thread:
http://soda-machines.com/discussions/index.php/topic,871.0.htmlTHANK YOU JohnieG!
But as you can see, the switch is wired to a jones plug connector and the switch is mounted to the top of the coin mech with velcro. The switch is activated using the coin return lever. That way you don't have to modify or drill holes and you can unplug the free vend and plug in the coin mech when you want to charge. Best of both worlds!
Tim