The problem with limping is that, even if no one else chooses to mess with you, you are giving the blinds an excellent chance to out-flop you. Garbage like Q9 that would have to lay down to any kind of raise gets a 30% chance to out-flop you. It's quite likely that neither blind has a hand that could call a raise, but that between them they have 2-3 overcards to your pair.

You almost have to bet any flop checked to you, hoping to use your position to scare out a T on a flop like AT5. And once you bet, you'll have probably 30%+ of your stack in the middle, so you will not be happy about seeing a check-raise.

I think I'd just push here. You definitely have fold equity against a lot of hands that are 46% against you, and some players might even fold 99 or TT. You're a (very) slight favorite against two overs, but with the substantial overlay from the pot, getting called by AK is still a profitable situation.