Have you tried the #c-64 channel on ircnet? It's fairly well-populated,
with a lot of knowledgeable folks and demo-scene types around. I'm sure
someone there can assist you with the specifics.
I for one have never involved myself in the SD / IEC stuff. I seem to do
just fine with emulators and PC-
I wonder if there are any Commodore people out here who could tell me what
practical differences would result from using a Gotek-type
flash-memory-based floppy emulator in place of the C1581's mechanism, vs.
using Jim Brain's uIEC-SD or similar.
I don't know if the thing would even work in a 1581