Help Someone!!!!!body troubles (rust)

[Lazarus]

does anyone have any ideas how to get rid of the rust on my car its pretty bad ,ive cut some of it out and i am planning on putting a new rear quarter if i can find anyone in this part of the country who will take some time to help and not do so many insurance body jobs . im stuck with this one i really dont want to change bodies b/c this was my moms car in college she let it fall into disrepair as you can well see . Help Someone !!!!!