Well, I would encourage saberMaN to do a lot of research first - both in how the original was made, and also some basic woodworking techniques. Feek61 could do the job based on the TOS Shuttlecraft he's done, but scratchbuilding a TOS Enterprise in a large size is not easy. And from saberMaN's question, I get the impression that he is just starting out in this hobby. And starting with something too difficult for one's skills (despite the advice and talent from this place) is a good recipe for getting frustrated, throwing the model against the wall, and giving up prematurely.
The secondary hull of the original was assembled much like a wooden ship model - plank on frame. Then it was sanded smooth and details added.
Gene
PS - Keep going saberMaN.....