Think your definately safer staying away from airspace boundary inclusion (another pun, sorry!)
All sorts of errors and therefore I would imagine) liabilities would creep into your life, if you start showing out of date data. Everyone has a chart - just tell them to use it!
I'm assuming you investigated using the Multimap/getMapped photographic data already? Thats got complete coverage of the UK (although not quite to the eye-popping detail of your satellite imagery!). You may have to pay to access it perhaps?
Anyway, keep up the good work!
RH