Happy Hour JJ Hand - Overthinking?

[Chief911]

Happy Hour Hand:

Villian has a huge stack of 5k (Probably 1st or 2nd overall) in Happy hour, with about 70 people left. Blinds are 25/50. I have 2300 having just doubled up with a set. Villian in this hand has shown the ability to call with a wide range preflop to try to hit hard. I'd say neither donkish nor supertight/good.

2 people limp (Not unusual) and I raise to 250. The SB (Villian) goes allin for 5k.

My pea sized brain says "Self, who the hell would play it that way unless they have AK or MAYBE 99 through QQ? Call that nut." I call.

Standard? Overthinking? Donkish? What do you do there?

Nick