I'd be glad to help if I can on this Jack, I love your project, though I am no expert on anything! (save some history and government and government organisational theory, but I kinda doubt that is of any use.. as always
I got the DOS and Special Edition of both SOMI and MI2 (LCR? LR?) and I'd be happy to try and extract the sound effects and send them to you if you'd specify what effects you have in mind.
Oh and add comments if possible to to your CoMICE blog I say!