The Thunderwing is one of the few vehicles I had, and sold, that I still regret to this day.
It is a big, chonky plane that suffers a bit because of it's gimmicks. However it is still a modern plane that works really well for the 3.75" line. I don't know that it would be feasible in 6" Classified scale without the usual cheating on true scale to make it a bit smaller.
However I know if they made it I would definitely pick one up even for whatever crazy price they would charge.