S3D will not allow you to view the turm attached to the hull.
(Unless you build a special dat)
You could export everything and in a 3D program, import and place everything, then view the textures aligned.
Both ways need the skills and time to do it.
Quickest and easiest way is to create a texture with reference points and view in Game.
Something like this helps...........
http://community.secondlife.com/seco...t-pattern4.png