I wasn't sure if this fit into any of the other tech forums, but I found this while drudging around on eBay:
eBay Motors: Electronic Ignition - Alfa-Romeo Alfetta, Spider, etc. (item 320261474196 end time Jun-18-08 22:45:23 PDT)
I'm a bit concerned that there is no safety for the system (i.e. if the ignition is in the run position for more than 30 seconds, the components may fry). I'm sure I could create a safety for it, but I want to know if the system even backs up its claims.