[yossarian19]

OK, so I've now got a 1957 chevy truck with an OBD-2 connector, which I plug in to a bluetooth interface. I can read trouble codes & operating parameters (air flow, fuel trim, etc) on my cell phone.
Feeling pleased just now...
Another trip to the hardware store for bolts, a few more line clips, a little paperwork, bolt in the seatbelts & I'm on the road.
I think for at least a couple months I'll keep it within the range of my AAA's "free towing" plan. In the last year and a half, I'm almost bound to have laid myself a couple traps...