Andy
Try to find one gas can, and one water can. They both go in the jerry can holders, but the water can will have the date on the top, to show every one that you a have WWII one (for the jerry can police), but also, having the water can is great for washing your hands after working on the halftrack at a show.
Water cans can be found cheaper than the gas can.
One of the few, Frank USMC RET