I've still got to mount the oil pressure warning light (bright @$$ red LED) and clean up the wiring, but with a little help I got the shift lights and oil pressure stuff wired up. The shift lights need some configuration for min / max RPM / when to flash / etc, but they're uber bright. Should be very visible even out of the periphery.
Finished wiring up the oil pressure warning light, then cleaned up & loomed the wiring under the dash. And took care of that big bundle of wires behind the stack, but I wanted to test the dash before buttoning everything up completely.
Looks like another Miata might be joining the stable. A 1990, white (complete with flaking paint), manual-everything, that needs a bit of help. In good news it has never seen salt and has less than 100k on the clock. More details to follow when the deal goes through.
Got the belts installed and adjusted, and finally got to test out the HANS in situ. Neat bit of tech, and I'm very happy with the decision to get the sliding tethers.