WTF this hand is weird. Why did you check the flop? Why did you just call the turn?
As played I almost like folding the river. I don't think he bets the turn and checkraises the river with worse than a pair. If he was donking the turn into weakness with a hand like KQ and then hits the river, I think he just leads out. If he was going for a checkraise on the flop and missed so bet out on the turn (which he might have done with solely a T), but then I don't think he checkraises the river with his unimproved T.
Yeah your hand is underrepped, but I don't think I've ever seen a river checkraise with less than a single pair at these limits.
I've got 1000 words for this hand: