I need a gass tank for my 83' Vanagon, = does anyone have one to sell?

I couldn't get the van started = yesturday and we found out that the tank had been dented when they pulled it out of the junkyard. It still works, but I can only use about 2/3 of the tank = before it will not suck any more go go juice out of it. Let me know if = you can help me out. Thanks,