Heads up!
The fuel tank end sections are inset. As a result the overall length of the inset portions must not exceed a dimension that will permit the installation of the front and rear felt pads when mounted on their respective brackets.
The exposed lengthwise seam will enjoy being supported by the internal baffles. The reason for suggesting these guidelines will be clear if you ever allow passengers in the rear compartment.
If your experience is similar to mine, I find little enjoyment in removing and replacing the fuel tank assemblies. However, it is necessary for multiple reasons including cleaning the hull to re-oiling the felts.