Plastic Storage Container Help

I've been looking for a specific size of plastic storage container with lid for my rear storage. The opening is only 12" in height and it's 36" deep by 79" wide. I've been looking in the 10"Hx24"Wx36"L size range, but all I can find are under bed containers that are only about 6"H. I'm trying to store my cables, hoses, and stinky slinky and that's not deep enough. Anyone have any suggestions?