So you are going to increase the price by $100 and add about $36 worth of materiel?
Sadly yes, depending on quantity I've been quoted at 30-50 (also 115 but let's outlier that one) per
end piece which is about an ounce of silver each. That plus shipping and more pretty much adds 100$ to the already expensive price. It's certainly more than I would pay for it myself. Also Since I have to pay for them upfront by myself I was only going to get 10 made, so not as cheap as if I made many.
Tungsten and silver rings with teflon o rings though....