Mark,
The owner's identity is no secret, just look at the entry list in the W&P programme, or the list of prizewinners on the website.
Incidentally, talking of prize winners, how can a Panzer IV and M5A1 Stuart, win 1st and 2nd prizes in a category for "Best British Tracked Armour" ?? When I judged that class some years ago, I only looked at vehicles Made in Britain. The following year, someone else judged, and awarded it to a Chaffee !!!