I've racked a couple of mic pres, and I have a couple of stereo input modules that I'm probably never going to rack up...
I don't have the pinouts, but the mic pres can be powered with the 9K PSU which I designed, in fact the very first veroboard prototype that was built was used to power the 5000 mic pres.
People buy the 5000 EQs and think they're getting "that SSL sound"... but the 4000, 6000 and 9000 EQs all were parametric... the 5000 is sweep-only. The 4k, 6k and 9k have high and low pass filters, the 5k doesn't.
The 5k is easy in that evberything is standalone balanced-in, and balanced-out using little hybrid driver modules, but I'm not a fan of the sound, and they're NOT the good SSL modules.
I'll sell my SL521 modules (stereo input, gain, polarity correction, balance and matched high-pass and low-pass filtering) if anyone wants them, but otherwise I'll hang on to them as a source for pots etc.
Keith