No no. You had it right the first time. Its a TOS saucer, with a Deflector dish where the lower sensor dome is supposed to be on the saucer, and it has a tos NAcelle attached to the neck rather than a stardrive.
Also I must have clear permission from the creator to import it to blender.
If you eliminate the impossible, whatever remains, however improbable, must be the truth- Sherlock Holmes