Custom reluctor ring, suggestions on where to get one

I can get one done. I sell these 36-1 wheels here: [FOR SALE] - 36-1 Crank Trigger Wheels 318/340/360/383/440

I believe the factory Magnum reluctor had 8 holes, but I'm not sure of the overall diameter of the ring? Size of the holes and overall diameter would come in to play when designing a smaller one to be pressed on to the crank pulley.

Great! I need to get an accurate measurement of the pulley OD because I know it is bigger than 4.26". The OD I need is 7.75", and it needs 8 equally spaced notches, but I haven't worked out what size yet. Will be in contact.

Thanks!