Thanks to everyone for the advise. Tugadude I feel like you're right, I think I'll design a test collar and put it on my livestock dog for a few months and see how it holds up. In the meantime I think we'll go with the more traditional approach for those who want the leather collars (riveted and tone down the design a bit)
Off topic but I've noticed since looking in to this that there is a TON of stuff on the internet that specifies genuine leather but is clearly not. Especially when it comes to dog collars and leather jackets (not sure why leather jackets kept popping up in my searches.lol)