I found out why it was 31 meg. I had a few massive components in there that were from import experiments. I purged them and it's much smaller now. I also reworked the rear end, and I'm putting in windows proper.
Here are a few things that I found out that are intresting...
The ship is 1:1, and I found out that the insides, for the most part, are quite consistent in scale. The only real issue is that the real external size of the ship verses the published sizes are incorrect. I'm nudging around the skin of the ship and the placement of windows to better reflect what's inside. Also, because the skin is angular, there are a few more vaulted overheads (ceilings) that I took for granted.
By the way, here's the actual size of the ship
Published dimensions:
length: 842.5 meters
beam : 487 meters
depth : 137 meters
Real world dimensions
length : 1048.41 meters (a kilometer!)
beam : 738 meters(!)
Depth : 238 meters
By beam I'm going by the widest part, the saucer. Also, the plans I'm using are not Mike Okuda's I'm using the original ones that were authorized by Andrew Probert, the original designer of the ship.