Let's go back over some of the screen caps that I've provided and take a closer look at the engineering hull in general and a slighly larger overall view of the ship.
As you can see in the photos below, we've plotted out a more clear over all look of the engineering hull, straight from the screen caps, where the parallax is a minimum.
Later we'll combine some of these plotted points and lines and attempt to come up with a close approximation of the neck and engineering hull. First we'll want to have a refined hull shape, then we'll go back and add the various details to that approximation and overlay that onto our original draft from the X-Ray. Later still we'll use the final version of the print to create one in CG and show how this same data can be used to cut a hull on a lathe, or use a lathe tool in software to do the same thing.
For now, let's look at what we have. The first thing I did was establish that I had the best shots I could get where the distortion from the POV of the camera was a minimum, after which I used a basic "Paint" program to outline and highlight the shape of the hull. You can get the same program I'm using for free at PaintDotNet.
I've also taken this opportunity to plot out some of the details with relation to each other. As stated earlier we will confirm all of this later and will compare this data with what we know to be facts.
Look at the degree of droop of the nacelles in the last photo. Again, this is not to take away from the creators of this ship, it's merely an effort to comment on facts, accuracy and symmetry. We were perfectly happy to watch this ship streak accross our screen every week back in the 60's, or every night in syndication.