Yeah the sizing that's left really sucks since you can't induce. I doubt he ever ever has 77-99 here with this line, i think that's just mega unlikely. I also doubt he pays a Q this way although it's more possible. I hate checking the turn just incase he has a draw here, but any large bet is getting no value from worse. I guess I'd half pot it to try to induce a draw to mistakenly shove and protect against a random A or K, or gutshot or whatever since I think we're good here an absolute ton. I think it's pretty likely most of his range is just air that's giving up on the turn or has some smallish non made hand equity. I'd bet like $8, cutting out any odds for draws and call a shove I spoe although not 100% sure.

Think flop is a call to allow him to continue bluffing since he's repping so small and doesn't have many worse made hands if any.

Decent spot to 3 bet preflop if he folds to a decent amount of 3 bets since you get to fold out a bunch of pairs, and aces and are likely rarely dominated when he flats. Flatting is also ok imo.