If you can put your antenna on a window ledge with a reasonable view of the sky, I think that you would be reasonably surprised at what you can see. That's how I'm using my RB at the moment in Uxbridge.
Also, remember that you will be able to see the Network traffic too, so your horizons will be unlimited :-)
Your 6 to 8 weeks will fly by if you have RadarBox to play with!
Listen to that voice in your head - spend, spend, spend ...........