@Gagarin - thanks!
@Mytran - Nice
I'll give those pics a shot and see what number range I come up with.
Did you guys know that the Enterprise had a fancy vertical warp core?
It's that big vertical pipe/conduit structure that Evil Kirk blasts with his phaser. I haven't worked out it's location yet and the camera never pans up to know what it looks like above 7' - so it's conjectural as to what the top half looks like.
I also tightened up the dimensions with Mytran's help and the room from front wall to back wall is now 24' long.