Finding a NOT standard Miwa key or key blank

Standard Miwa has the magnetic chips on the edges. I'm trying to replace a broken Miwa cam lock key that has 8 magnets on the top flat side and consists of 4 magnets on each side of the center groove. There is also code info stamped on the key. The Miwa factories in Japan and Canada can't help. If anyone can prep a key by code or has the blank (I could use the magnets from the broken key to load the blank) PLEASE contact me (702)382-2822 Thanks Sonia Osbourne or Sue Lee