Needed: Wiring diagram for rallye dash 1970 Duster 340

My dash tach and ammeter gauges are not working (got the car this way and owner didn't mention it). They said it has a new wiring harness (I don't know if it is a correct rallye harness), so I don't know if those gauges are faulty or not wired correctly. The other gauges are working.
Does someone have the rallye dash wiring diagram to help me out? I have 2 guys coming to my house tomorrow to look at it, so I need it soon.
Many thanks.

duster_dash.jpg