DCG's project is a little on the high end too, from the sounds of you. Read this:

Carb to EFI

With it being a pre 84 truck, some other considerations will be a newer exhaust manifold (pair shaped exhaust) Not sure if that header would match up or not; you'd have to look. If you can keep it, DO it...

AND ignitor/dist/coil/alternator WHY?

You currently have the setup with the external voltage regulator; not too sure if that will cross over without driving your EFI nuts or not. A 85-95 (non-3.0) donor is ideal; there's a guy parting out a 90 Runner right now in our FS section; always stuff on fleabay.

www.car-part.com

We also have a variety of FSM's sticky'd at the top here for your reference once you get your parts pile lined up.