well, if the information is correct this time and he raises 5200 of his remaining 25k (?) @ BB1600 he may not be getting away from this hand. granted he has been stealing a bit before the flop but it doesnt sound like anyone has reraised him preflop besides your AKo from earlier. and on that hand he did call your reraise OOP and folded on a 9 high flop.

id say hes pretty loose.

moving in might not get him off the hand
so with position i would just flat call and hope to catch him on the flop.

has he made what seems like any contiuation bets in this game. because you reraised him the previous time, will he fire this flop if you flat call?

i say call and make a new decision on the flop. hopefully you can just go ahead and flop AAA.