[70 ls6 convert]

im starting a full retoration on my all org 69 z28 but the problem is i got just a little rust hole in the weel well on both sides of my car.u could say 1inche by 10 inches along the top if i wanted to build a # 2 car what would a pro do. i dont want to cut the org if it would take away from the value thanks kris from alaska