Hi Dracsharp,
I would expect his donking range to be a Qx hand and some Jx hands possibly with FD.
I think that by the turn he would ck/raise sets and 2p (so AQ) and thus his river range is the Jx + draw and KQ/QT so I like our bluff. It really only needs to work like 35% of the time so even he just folds the QT and Jx+draw it's fine.