Need some ideas

Hi guys bought myself a 65 barracuda, when I bought it the previous guy had a makeshift fuel cell in the spare tire area. I bought a brand new tank went to install today and noticed no way the tank clears the spare tire jump and shocks. I know the guy replaced the spare tire area and might not be correct for the the car. Wondering if anyone can get a photo of the trunk area under the carpet and also a pic of the upper shock mounts. I'm thinking they relocated the springs and also shock mounts