Can’t start ?

I have a 1975 dodge dart sport with a 72, 340 motor that I installed. I converted it from an automatic on the column to a four-speed with a used steering column that I bought at Carlisle. I set up everything to the best of my knowledge, but have no power when I turn the key. All my lights work. I do not have a neutral safety switch and I’m not sure if I need one? There is one connector from the harness under the instrumentation cluster that has 12 Volts of power? There’s also a connector from my transmission. See pictures. Any ideas besides recruiting paid help? Thanks so much. Dan M

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