We are still tweaking the cap. They are a bit of a pain to get the right dimensions, but if we can get one that is good, we'll likely do a group buy for them to keep the price down. I'd like to get a GB price of ~$3, but I think it'd end up being $5. The copper press fit, is $7 for the first, $5 for each subsequent.
Do you want all anodizing removed or just on the contact areas? The tail clicky mod we are still talking over. Doing one-offs would be time consuming, and would cause the price to be run up closer to $10+. We are hoping to do a GB for them and get them down to a more reasonable price.
It's actually going to be less to remove all of the anodization v.s. some. (Although I bet my dad would love more chances to play with the new rotary tool he got) This is because we do a dipping process to remove the anodization. The groove is a fairy simple host, and does not have much texture, so polishing I'd say would be $20. I'd say around $5 for the anodization removal. I don't remember how much time he spends with that as I know he has to clean up the parts and whatnot.
The price offers are also open to anyone else that wants similar work done.