Here's what I know...
There is an F.6A stored inside, which was originally XK149.
Outside, there is a T.8M that was XL603 and a GA.11 which flew as WV267. It also carried "836" on the nose, which is still somewhat visible under a few layers of paint. I am looking for my friend's photos right now, which are very detailed and essentially present a walk-around of the aircraft, along with photos of the data plates. Below are links to some photos of the birds that were taken by someone else and posted on their websites. Hope they are of interest. The birds are all in pretty poor shape, and IMHO, they will never fly again. They have sat just where they're sitting for at least 5 years, and probably more, exposed to Oklahoma weather and totally ignored. It would take a whale of a lot of work to make them fly.
They are the subject of some old disputes by the former owner and the IRS, and have essentially been abandoned on the ramp. The owner of the FBO is more than willing to talk turkey with any serious buyers, if ownership issues can be addressed. His unpaid storage and ramp fees by this point more than exceed the probable value of the airframes.
Hope that helps!
kevin
Inside F.6A (XK149):
http://www.thunder-and-lightnings.co.uk ... php?id=245
Outside T.8M (XL603):
http://www.thunder-and-lightnings.co.uk ... php?id=308
Outside GA.11(WV267 - "836"):
http://www.fradu-hunters.co.uk/fraduhnt/836wv267.html