Please help I’m Stuck It’s been 5 months

Hi there. I've seen a lot of good ideas posted to you but forgive me as I haven't read them all so someone may have mentioned this, but I noticed in your pic that this is a manual trans car. You have to push in the clutch pedal to get it to crank. I believe this is correct for the 73 model year. You can look under the dash to see if you have wiring up there. Hope it helps.