Rewire 67 Dart GT - need recommendations - what's best?

M&H from yearone. I wouldn’t go any other way.

Mopar designed the systems to be be three main pieces with ‘off shoot’ pieces that plug and play into the main pieces.

Ie: you’ll need the dash harness for the 67 Dart, probably around $800, the engine and forward lighting harness for the 67 Dart around $300, then the separate individual harnesses for the optional equipment like the A/C harness etc…. You’ll probably find though that many of the subsidiary harnesses will still be in okay shape.