Sorry for taking so long fellas....
I've made a few to send out to the people I'd promised them to, and the couple a people that pm'd me. It's so weird seeing a new one since I'm so used to the "epoxy repaired, safety wired" center caps so I'm getting used to seeing new ones gonna take a bit
I also beefed-up a bit the contact ring to coil wire terminal ( see 2rd attachment) for more trouble free service.