Wtb Drvr Fnt Door Latch/ Fuel Pump 97 Sable

I just bought a 97 Sable GS and found out that the driver front door latch is broken (dome light swont turn off!) And the fuel gauge doen't work, the gauge on the cluster works fine, i was told that the device that controls the gauge is in the gas tank, trust me the gauge when tested goes up and down it just dont read fuel accurately! If anybody can help me i would appreciate it! THANK YOU! VERY MUCH!!