Here's the timing chain; it has a little play, but I guess that's to be expected after 175,000 miles.
Here are a few of my scribblings on what could go into a carputer that I'll be building. Don't expect it to be coherent or make much sense.
This is a shot of it while it was still in the junkyard car, but that's it against the firewall, with 10 wires coming out of it.
Since the Emergency Brake handle in the car had fallen apart (the screw came out, and the button came off the plastic stalk, which fits inside the metal stalk), it was fixed, to my surprise, with just the parts shown.