1988 comanche rocker panels

My son (15) just bought his first vehicle, a 1988 jeep comanche.
It needs a lot of body work. Where can I find some rocker panels? His are totally rusted out.

J.C. Whitney usually has pretty good prices on bod parts. Are the rocker panels pretty much gone? I have seen some of these trucks go really cheap on Craigslist, like from 400 to 600 dollars. You could get all the parts you needed off of the truck that way and do what you wanted to with the rest.