For expediency, you might ask Nick Makinson, look in DGJ for his ad, if he can do it. He picks guns up in Port Huron, Michigan. I find him a wizard in metal. He has worked on any number of ejector mechanisms for me and understands the appropriate metals, timing and fabrication needs. Nick is the one who built my WR ejectors from scratch to replace the original by Perkes in my Blanch hammer gun while also restoring the Perkes mechanism in case I want it put back in the gun. His number is (519) 471-5462. If he is in the country, he can probably accommodate your turn around needs if you let him know.