mental note to self: never, ever buy a car from team dat. seriously though, there is no easy way to fix rust. you can buy repair sections or have them fabricated, or if you are really fussy track down & purchase brand new genuine panels. it takes time & lots of it too. i've spent 300/400 hours rebuilding some cars & thats just bodywork, paint prep takes time as well, but thats another story. speak to as many body repairers as you can & ask their opinions & decide from there.