<< Can I ask why you needed to rotate since I can see it perfectly in MOI here??

Because I wanted to redraw it! (i had suspicion that there were something wrong in it (as shown by Michael the Sherlock of the Nurbs! :)
It's much easier when objects are align along axis, grid, view Front, Side , Top.... :)
I prefere vertical walls around me! :)

About size no problem i resize it for be acceptable with my own grid...

so your UFO landed on the origin of my grid (with some rotations! :)
and will be easy redrawn :)

Of course i could use some CPlane helpers but...each has its own little tricks! :)