Good news, I finally received the tips from the factory. Check it out: http://lekoza.com/Tools/MedallionPunches
I still need to experiment with making the punches, but I've made the tips available for anyone who would like to make their own. Since the price starts to add up on patterns with a lot of holes, I had the tips designed in a way that they can be replaced / reused if you create a face plate on your punch.