Left tank side Ross/Higgins/Thunder jet

[Salt Flat Cycles]

I know this is a long shot, but figured I would see if there was a left hand side of this tank out there. The right hand side is decent and the left is eaten away, probably sat on that side. Looking for something on the cheap side as you can imagine the bike is rough and not planning to restore. The bike I have is a JC Higgins but I think the tank was the same on the Ross and Thunderjet.

thanks,
Mark