I too had been researching Speeduino for possible future use.
I run Megajolt 3(built myself) with a Ford coil pack/EDIS unit. I ended up purchasing the dubworks trigger wheel for a Bernie Bergmann 911 fan(from Mario Velotta). I machined the back side of a Jack Sachette(jaycee) pulley to fit it. Pickup mounts to a case nose bolt(for Ed) and is hidden. Works perfectly.
Very cool work, Mike. Keep it coming!