I think using the explorer electronics would be awesome. Ive seen one other car like this in a magazine. It makes for a modern OBD2 type system. Most people take the easier and proven route of the distributor and foxbody computer. But if you want to be unique and different, i would use the explorer setup. Basically it uses a camshaft position sensor in place of the distributor and coil packs fired from the computer. You'd be one of a few around doing this. The key would be to: A. Get all wiring intact and the computer, youd even want the computer port, etc. if its a 96 or up setup. B. Also, you can get around the transmission problem with a custom tune that way your ECM isnt searching for the tranny. A custom tune will also make your timing and fuel more aggressive like a mustang should be, unlike the explorer stock tune. So my vote is to go for it if you've got the time. Otherwise, if you wanted to easy route, just scrap all of that and throw a carb intake and a carburetor on there and be done with it. The GT40 motors work nice with a carb in a classic stang.