For anybody interested, here's a progress pic of the "kitbash" I'm working on:
http://rongeorge.com/albums/uploadhere/carrierprogress.jpg
It's based on the Galaxy saucer and a design I've had in my brain for a while. While trying to find a "shape" to use for the secondary hull I found that I liked a Hasbro Naboo Starfighter in storage. I cut off everything. The picture depicts a saucer that was temp. taped to this. I'm actually farther along, with the two connected, the deflector "morphed" into the bottom of the sec. hull and the top aft filled in. Next is impulse engines, phaser strips/photorps, and finally warp engines. Actually kind of a fun project.