On the whole, it's a very beautiful form, but I'm not sure it's optimized very well, and it's going to require a great deal of skill to texture well...
The station... well, personally, I'd weld the rounded edges and see if they'd look all right, and then go from there. MS3D's 3D preview is actually a fairly good gauge as to how welding's going to turn out in the FL game engine imho, but those angles look sharp enough it's probably going to be pretty iffy, and you're going to end up with some issues there.
Also, the station pretty much begs for some very carefully-contructed glowmaps to make it really work. DDS DXT3 textures can work surprisingly well for this, because if you work carefully with the base texture/s you can make the alpha channel for the glow work... by making the alpha very, very simplistic. If you try using 16-bit alphas you will be sorely disappointed... and I'm not even going to start talking about what I think of using a gigantic TGA for this kind've thing
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