Also Warped9... have you seen Mandel's versions of TAS shuttles and ships in his "Enterprise Officer's Manual"?
Comments? Observations? Ideas?
I used to have that book. And I do recall Mandel's drawings. They were essentially straightforward recreations of the TAS designs albeit cleaned up. But there was no effort to make them more credible in the "reality" of the TOS universe. They were still rather wonky looking and way oversized. They were nicely drawn, but they still looked like drawings with the simplicity of animation.