My ramblings took me in the way of part possibilities today, and the possibilities turned out to be a few USB/firewire/NIC cards, of which I have ample supply, so they stayed there. I adopted a Key Tronic PS/2 keyboard, windows key, rubber dome, not one of the nice Model M or M2 type ones, because it was super cheap, and though it's a bit yellow, it vibes like early pentium, where I've got a thin patch. Also picked up DB9 and DB15 breakout boards with screw terminals which will be great for figuring out weird hookups, maybe also for port troubleshooting. Then I got a kit for a stepper motor control from parallel port. That's in a "once you crack it open you lose everything" type of bag, so just been rattling it around and poking at it trying to see all what's in there. Seems it's not very sophisticated and is just gonna buffer/amplify bit banging from the parallel port lines. I was thinking vaguely of something like a cantenna rotator when I picked it up.
Tool wise, slotting dallas chips and notching s771 got a mite easier with a small needle file kit, that has a very good feeling handle that holds them firmly. I like handtools for some things over powered because of better control, less skipping, and not filling the air and subsequently workshop surfaces with epoxy dust.
Aha, found a sturdy ziplock to "shell" the kit into and not lose stuff. Okay it is a bit smarter and less bitbangy than first anticipated there was a preprogrammed GAL by atmel and a 555 timer for the pulses. Might be a bit more useful to a more retro machine application when it doesn't use up 90% CPU "farting" the parallel port.
Unicorn herding operations are proceeding, but all the totes of hens teeth and barrels of rocking horse poop give them plenty of hiding spots.