AKo, how would you play this hand?

[Shammu]

Live tourny, $150 buy in, 260 players, 26 left, top 20 get paid, final table get paid good money. Blinds are 1000/2000 with 300 anties, hero has 31,200 chips. Villan has 32,000 chips. Villan is UTG and opens the pot with a raise to 10,000, Hero is MP2 with AKo, CO and SB are big stacks. Your move? Villan is a relatively tight player.