Performed the "NPD Duraspark conversion wiring harness hack" CZ-75 came up with, cleaned up some more wiring around the battery tray/voltage regulator area, and tuned the carburetor (I had been turning the air mix valves the wrong direction, which was causing it to go further rich vs. leaning it out).
The wiring harness hack went well, but sparked an effort to clean up the spaghetti around the regulator/solenoid/battery tray area.
Also switched the distributor vacuum line from the 'constant' to 'timed' vac port on the carb on advice of my pal Jim (he is an Edelbrock magician, after all). It seemed to settled things down a bit and it no longer runs so rich [it was beginning to foul the plugs]. I'm not so sure about the vac port configuration, but we'll let it roll for now (not like I'm driving it or anything).
Having the wiring correct made things nice starting it up - turned the key to 'On,' waited a few seconds for the electric pump to prime everything (it had been sitting for a few weeks), and started right up within a split-second of hitting 'start' on the switch. I do need to put a stiffer return spring in the steering column, since the ignition switch seems to have no real sense of urgency to return to 'On' from 'Start.' But, that's another day.
Also, hung the fenders on the car for storage purposes - and initial thought is that they're going to need a lot of alignment when it's time to get that done. There's a guy doing body work on his '72 Nova, and plans to paint it with Rustoleum (through a gun, at least) in the parking lot next weekend. He's been an inspiration to me to get the rest of the sheet metal squared away - plus, I think this break while working on the pool has been helpful towards motivation.