MAD electrical upgrade for 1973 Dart

So, I traced the wire that goes to the neutral safety switch. The 3 wire plug is not even hooked up to the Switch on the Trans. Previous owner must have grounded it somewhere and after moving things around the connection got fixed. So now I can start it with the ignition switch. Now I just need to repair the wiring for the Neutral safety/Back-up light switch and install the Ignition switch into the Steering column. After reviewing th ewiring diagrams, I can't even see how the Signals/Reverse lights are even working.

Wait! I have a Hurst shifter that is currently being installed I have not hooked up the shifter yet. I have the gear in park and the safety switch installed but I do not have any electricity going to the shifter because I am not sure how to wire it just yet. Now that I think about it I may have had my car in N when I cranked it and I got backfire.