Here you go:
These are the two main parts of the hull, and make up the framework for the entire gunship.
These are the sides that face outwards; down and up respectively. The studs on the upper portion are for attachment of the greebley bit:
This is the profile of the greebley bit that goes on top. The purpose of this section is just to make the thing look nicer and to add a place to attach the windscreen.
Here is the greebley bit attached to the upper part of the hull.
Here is the lower hull attached to the upper hull, as well as the carry port that will fill in the space in the lower hull.
Attached to its hinge in the lower hull and more or less flush.
Cockpit. The bit in the middle is from some old sets, and I'm lucky enough to have 2, 3, maybe 4. I can't find it on Bricklink, so maybe someone else can?
Here is the cockpit attached to the hull.
Interior framework of the repulsorlift pods. Of course, you can replace them with anything you like.
Pods and splattercannons attached to the stubby wings. Note: the splattercannons are attached to the middle technic beam of the upper hull.
If you use this design, kindly give me credit. After all, the GMC has to make money somehow!