In light of the NLC comments in @trickyflemming's sale post, I figured I should tip my hat to him, and everyone else here who helped encourage exploring DIY.
If anyone's been on the fence--or even, like me, in the beginning, totally written it off as a possibility--let me testify that you can teach an old dog new tricks.
So not only have I successfully built over two dozen modules now--SMT and through hole, and a mix--I've managed to successfully modify some of those modules with alternative builds, semi-figuring it out on my own (i.e., building a second,'fast' NLC Sloths; a pair of NLC 32:1s normalled together; a Triad with slightly lower output voltages, and a few other things), and built my own PSUs and cases from scratch, but I finally ended up with an Ornament & Crime, which is what got me at least thinking about this stuff in the first place.
I've also built a few passive gate-to-trigger converters and passive fixed rate slew inverters using existing Intellijel or Doepfer mults I had. Very, very useful stuff, at least for me.
I'm breaking in to 4U/Serge related stuff now too. Next up is a second, lower range NLC Plague of Demons, his new ARSEq, and, one of the Dervish modules using the FV-1 chip. Also a few other random things, and slowly, in between these, building up a Null-A. In no hurry with that one.
Mainly this is just to thank everyone for the positive nudges and advice, and to encourage others to jump in. It's ridiculously fun. I could never have imagined how enjoyable it is.