Imperial fighter concept 01

This is without a doubt my favorite fan design of Tie type fighters...  way better than the clunky ones we see in the movies.

I would only have only changed one item, instead of a radar dome, I would have made that an astromech slot, since we know the Empire has them.  It would have been about the exact same size.

Two questions:
- While I can guess based on the man in the one image of this fighter, was wondering on exact dimensions you were shooting for?
- Is that fin in the back with the lightspeed engine and fuel tank centerline, or off tot he side... makes more sense to me to be centerline, but the image is a bit deceptive?

One final thought, ever consider doing a droid version of this fighter?