[Stumpy]

Black,

You have several errors above.

First, folding leaves you with 47k. You don't get your 3k raise back.
That makes ending at 49.5k +2.5k, +EV and +$EV to push.

Second, adjusting his calling range to KK+ makes it better, not worse.
(21/27)*(64k) + (6/27)*(.185)*(104k) = 54k

As I said before, it is the folds that makes this play good, not your odds when called.
Note (21/27)*64k = 49.8k, meaning if you lost every time you were called it is still +EV.

I think it's a serious error to assume the average player in this tournament is only reraising JJ+,AK. I don't doubt that is all you're reraising, but to use that as the player average is far too tight, and you're missing a lot of value that way.