Z1R D3 Gas Tank

1980 Z1R gas tank for sale. I bought this because I needed the gas cap. I don’t need the tank so am trying to move it along. I’d take $450 plus shipping for it. Looks like light surface rust inside, but either way I’d get it coated prior to paint. Good shape otherwise. Includes sending unit. The only blemish I can see is near the gas cap screw, see photo.