NL50 JJ rivered set but facing big bet

[IAGTTAYM]

87 got there and he could possibly have peeled the flop with KQs. A few questions I would ask myself:

Does villain check an overpair or better on the turn? Probably not.
Can villain shove worse?
JT is possible, but is it in his UTG-range? Doesn't he bet the turn with JT?
Could villain make some weird bluff shove with AK or AQ, trying to get you of some weak one pair?
Could villain turn QJ into a bluff?
Most likely not.
Is 5x villains standard opening raise?

We have to be good 30% to call on the river. I think it's close, folding is probably correct but meh...