dented 1/4 panels

ok so the rear 1/4’s on my s13 are rly beat up, like all kinda of dents, idk what the previous owner did to the car but it was not good. anyways im looking for someone who might wana put the dents and/or cut panels out to make them straight and weld um back in or just replace them if i can find more. any one have expeirence with this?