Hey hey! cool to see some more Aussies around, where you at? You might wanna check out the team australia thread on the team boards, theres a few up in Sydney and I'm in melbourne. I'm a MZ-R 70 user myself, or was till it died in the ass, now I'm just borrowin a friends Hi-MD for the moment. As for sbd patches, in Melbourne I've generally found the boards to have RCA outs, or occasionally a stereo (or mono) 1/4th....so either of those > stereo 1/8th should be all you'll need for that. As for the mics, I'm no expert, but you'll find your best bet is orderin overseas when it comes to stealth mics.
Anywho welcome aboard!