The best thing to do would be to have a lot of time, a decent amount of cash and go to a junky.

You'll be looking for a 90-92 Golf or Jetta 8v. As far as I know those are the only years that have the digifant management.

Just take everything as it should make things easier down the road: ECU, harness, tranny, pedal cluster, shift linkage, clutch cable, speedometer cable, I believe even the axles are different(but don't hold me to it). You'd be better off buying a new flywheel and clutch. Also before you put the tranny on rip it apart and replace the rivets that hold the diff together with bolts. From what I understand the most difficult part of the process is the pedal cluster installation.

This is an over-simplified list, but it should set you on the right path. Good Luck, and I'll try to help with any info I have.