Hi, FM,
a pleasure to get get back to cockpit building issues. Did not have much free time lately..
But your request reminded me my thoughts some time ago.
If you need just an idea of dimentions:
http://www.checksix-forums.com/showthread.php?t=121928Its something really amazing, and, I think, very close to the real thing, about its dimensions.
If you're interested particularly in my Silver Can, one of thesedays I'll post a sketch of a fuselage former, ok?

If you want to draw yourself some elliptic section, just get a plywood sheet, two screws, a thin rope and a pencil; it's quite easy. 8-). If youre interested I can u give more details.
Inside is cold, yeah, but it's more like at 27,000 ft, and when someone in the head set says "bandits! 11 o'clock!!! They're 109!" you just look at those contrails....
Bye!!!