After a bit thinking and reference viewing I've decided to
work on exterior, couse it has a lot more intresting shapes
than interior.
So here goes the start. Bunch of curves fileted and extruded
to create the arc, the rest is simple lofts.
That's the wire frame shot.

https://img291.imageshack.us/img291/7...st1wireay4.jpg

and that's the 1024x768 render