Don't really no what these are worth, but they are in good shape. I wiped them off with a little water and they cleaned up very nice. One has a few dings in the side (could be mounted so unseen) and the other looks like someone had put some JB weld around the bung, don't know if it's the weld or the fitting. They measure 8 1/2" X 48" and the filler neck is 11 1/2" centerline to the front of the tank. Have the mounting bracket and fillers as show in the pics.
Possible trades would be a set of BBC zoomies, a 10 1/2" X 30" Imco (or similar) fuel tank, stringer mount billet battery tray for a optima battery.