On the other hand, a longer focal length will make it appear more claustrophobic as opposed to the agoraphobic evoked by the wide angle.
It also allows you to better compose for the background, as there is less of it, and you can do some amount of cherry picking.
Additionally there will be more flatness to the picture, which may appeal to your notion.
If you have enough resolution, there's also another way.
Use the UWA, and place the station near a corner (in my mind, I see it bottom left), but not so far that it gets distorted. A tilt lens is probably a good idea.
Print large, and the station will appear lost, without disappearing. With enough resolution, the text may even remain legible, so you don't have to rely on a title.
Weatherwise, I'd go for the classic thunderstorm look, which usually should coincide with afternoon sun. Storm should come in from the west, so that there's plenty of halo, but the sun blocked out. Alternatively some half-molten spring-snow or even an overcast rain might work.
If you go for a subtle approach regarding composition, you may want to set up some additional lighting to give the white a bit of shine, under cloudy conditions.
Also, if you can't spend some time trying compositions there, try penciling down some ideas, and see if they're doable.
Have fun!
