To follow on what Adam said:
http://www.flopturnriver.com/Small-S...y-Preflop.html

In this guide Renton mentions how you should call a raise before you with AQs, but fold AQo. Worth thinking about

1) I don't mind the 3bet since you are 5-way, but you are out of position - this way you just end up oop in a bigger pot. Either way with his stack size you'll be looking for any A or Q on the flop and getting all in with it. I think if you 3bet you should probably be calling the all-in pre-flop.
2) After his shove you are calling $3.20 to win $5.70. That means you need 3.2 / (5.7+3.2) = 36% equity against his range.
3) If you 3bet oop the bet needs to be bigger (around 4x) to encourage more folds. Don't get tied to a 3x sized 3bet. A PSB raise is to 3x the previous bet + small and big blinds if none of you are in them. It's not unusual to see people bet smaller (3x) in position and bigger (4x) out of position.

You're thinking about how your bet sizing manipulates the hand ranges you are playing against and this is good - I'm not sure you're arriving at the right conclusions, but keep up this type of thinking. Also I suggest reading up on SPRs which also relates to what you're trying to do here.

Btw, about calling the all-in. This could be a poor player with a short stack who got a monster - or who thinks he can bluff with KJ. It could be a decent player with a clearly formulated short stack strategy who does this with any pocket pair and AK (which gives you 39.3% equity)