Love the socket trick. Gotta remember that. Looks good. Not sure I would ness with the gap.
However, if you really want...
The gap can be fixed a couple ways. One is heat. Warm it with a heat gun or blow dryer till almost too hot to hold a hand on it. Any hotter and it bubbles and it's toast. Weight it down till it cools.
The other is to apply a release like packing tape to the fuse. Apply a bead of floxed epoxy. Close it so the flox mix squeezes into a seal. Leave it till it cures. Should fit perfect.
Estes Park, CO
wirejock at yahoo dot com
Donated 01/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (2,000+ hours)
Empennage, wings, fuse, finishing kit, now FWF
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.