Double trouble

I got the Dart a couple days ago. Great car, and it is a completely different animal than what everyone else is driving. But, here's the rub: I got a fuel leak and it looks like it squirts out the seam of the fuel pump everytime the gear turns on the lever. Then I got an oil pressure problem. the oil light comes on only in the afternoon and nights, and only when idling in R, D, 2, or 1. If I put it in park the rpm goes up and the light goes away, same in neutral. It does not come on when driving, but when I brake it comes on at about 10-15mph. The dipstick seems loose, but the car seems to be dripping oil. Fuel pump is going to be replaced tomorrow.