Rallye dash harness

If you can find a good 1971 a-body dash harness for standard instrument panel, that harness can be adapted to the rally instrument panel. Very little difference. I think the last one we did here was 72 Duster.
Wires are same colors, just in different locations. Move left turn and hi-beam indicator wires from round connector to the smaller left side circuit board. Move all others in the round connector to proper locations (factory wiring diagrams a must). The standard panel has 1 circuit board so only one orange wire feeds all 4 illumination lamps. Splice in a branch over to the 3rd connection on the smaller board (2 illumination lamps in each board).
The rally panel circuit boards never did change so the right circuit board must have 2 switched hot wires, 1 to the limiter/IVR (in the fuel gauge), and 1 to brake warning. For standard panel, 1 of the 2 switched hot wires was deleted at some year model (1970 maybe). So a spliced in branch from that must be added for the rally panel circuit board also.
The only hard part is where I started... finding a good used under dash harness.