That appears to be a P-40E fuse. A P-40B/C would be closer to the P-36 as that's what the 'B/C' was developed from. The 'E' came later and there are some differences in the cockpit/canopy area and the rear fuselage between the canopy and the tail. I don't mean to be critical of your project. I just don't know if you're aware of these differences.
Bill