It's Halfpenny Green, not just Halfpenny, Falcon (although technically it should be Wolverhampton Halfpenny Green Airport, but heck, they'll never make up their minds on that one... It keeps changing.) The Callsign is Halfpenny Green Information and it doesn't have either a Tower or Approach on 123.00, just a Flight Information Service, in case you feel like fiddling with that?
I was 2/3 of the way through doing it, but it looks like you'll get there first so I'll go off and do the other place I was thinking of. One reason I stopped is that I found out how much aerial photos of the UK cost to use legally and the answer is more than enough to stop freeware developers unless they're very rich!!!
If you want any information or building photos, let me know - it's only about twenty minutes from here and I need to go over to book a flight in the imminent future anyway.
Most of that peri track is actually closed - more than usual at the moment because of some surface breakup problems. You can go around past 34 to 28 anticlockwise from the tower, but clockwise, you can only get as far as 04, then you have to use the 04 parallel taxiway to go anywhere else. That's a right pain when they're using 22 for flight operations.
HD: Most expansion and wartime RAF fields look next to identical, because they're built to a common pattern and layout, only varying because of the local topography and most common direction of the wind (longest runway). HG was slightly odd in that it had vastly more hangars than it should - I don't know why right now. Only three of them are left standing now, but originally there were seven Bellman hangars when the "norm" was two temporary hangars (B1s, T2s, Bellmans, Callendar-Hamiltons, etc) for anything but maintenance and storage depots.