Maybe pic up a cracked or broken bone scaled razor off eBay to practice on. I didnt look hard at you razor but i think it was bone. Bone is made very thin too for scales.
This is a very clever idea!
I also have another non-razor project on my docket that I could solve with fibreglass, so I could use that to remember the basics.
But I will definitely go on the hunt for a razor with broken bone scales!