My apologies for the necro, but I feel like the information I have is pertinent to this thread.
I recently had my gunsmith clone my genuine Outdoorsmans stud for the Swaro EL. Being up in Canada, the shipping and cost becomes rather high.
Unfortunately, Outdoorsmans will not sell the stud by itself; siting warranty reasons.
As for install, it is very easy and only takes a few minutes. Pop off the Swaro emblem and backing on the bridge. Use fine-tipped needle nose pliers to remove the two jam nuts. There are a few washers that you can let gravity pop out on a flat surface, pay attention to the order they are in. You then need to press out the black bolt that the jam nuts were on. This is easily done using a socket as backing and then a 1/4" socket extension and wood clap or C-clap. Reverse the order with the new stud to reassemble. This is all very quick and easy to do.
Reach out to me directly and I can link you up with my gunsmith. He has a few extras already made up.