CoryFc

I think I have an electrical short for one this is the second battery that has died on me in a month and I can't find the issue. Idk where to take the car to have that looked at (86 fc) its misfiring, has a bad apex seal, the oil pan needs a replacement, my left headlight motor just went out, I can't find oil pressure/temp guages for the car anywhere...will any regular ones do? I believe the fuel injector isnt giving the motor enough gas for I have to give it gas to start. And is my rear end still good? The person had chained the differential to positraction the car I was wondering if I get the chain off would i still need a new rear end? I know its a lot but idk much bout cars to begin with.. thanks to everyone that'd help me out. I'm in fl.