Those look really good. I bought the supplies recently and built a press, but haven't gotten around to playing much yet.
How is the retention for your S5?
People say to use C clamps (screw clamps) instead of those quick clamps for better definition and then some thicker foam. I have both .08 and .06 kydex. The thinner stock seems kind of flimsy and I would probably only use it for a thin knife that needs really good retention.
Did you split any of those rivets by accident? They look really good, was worried that you could split them by mistake.