Hi everyone i just bought a ford fiesta 1.25 zetec Sreg which is a 98 if im correct, have a few problems with it

one of the wings has been replaced and sprayed badly as you can tell but isent really a problem
1. the back door on the car doesent really measure up to the 2 back lights like the gap on the right is wider than the gap on the left back light

also the fule gage needle is stuck so i cant tell how much fuel is in the car how easy is it to fix ?

thank you