Then you should start playing with cars built after at least 1993 because pretty much anything else will have some rust in it somewhere. Either that or get really good really fast at being a bodyman so you can afford to have all your cars acid dipped and sealed. Besides where would the fun of being a bodyman be if all you had to do was cut off the smushed up quarter and glue a new one on or unbolt the cracked fascia and bolt the new one on. The fun is in the cutting and patching of the rust. To quote someone...not sure who....."It's only metal" :D