I didn't design this one, it's from the Star Trek: New Worlds game so I'm not straying far from the original concept. I put the impulse engines in between and behind the tail sections. As for the rest of the details, I'm having to take some artistic inspiration from the D'deridex as the Melak has few references to go by.
I didn't shelve the Missouri so much as avoid it - I
hate making TMP Fed textures.
As for the P51 fighter, there isn't much need to make an OP version since both games use the same hardpoints and unless you were right on top of it, you couldn't notice the illumination anyway.