Just west of McConnells on SC322 there's a tractor dealer, with several older tractors up front...out in back, there are several old trucks, but what they are, I dunno. One appeared to be a flatbed, by the shape of the side window it might be a 1948/54 Chebbie.
We were on our way to Brattonville and the Rose Plantation in Union.
Pull up Google Maps satellite view and you can get pictures of anything that isn't covered. You can go for a "virtual drive" around your chosen area and spot individual vehicles that have been sitting long enough or were there when they took the snap shot.