It was midnight and I didn't have one so... I'm the kind of guy who doesn't toss much out. Steel rods get tossed into my punches, chisels and drifts drawer of my tool box and I happened to have 2 that were a tight fit. The rods were long enough to keep parallel so there was little chance of putting the bores out of round before I got it off. Didn't need that socket on the end to keep em parallel, just hand pressure was enough. A flat file served as the handle. This caliper sat for a good 25 years on the bike but I'd sprayed it with WD40 for 3-4 days prior. It came off easily.
I have to pick up some grease before I attempt to get the pucks out. There's enough ideas here that I should get em out ok.