Preflop: I would fold. You have no read on your opponent who is not exactly in a steal position. I think your hand does not fair well against an unknowns range opening from MP2, and you will likely be out of position postflop with a very marginal holding the whole way and with no information on how your opponent plays postflop. This is not a +EV situation IMO.

FLOP: check/raising, checking/calling, and betting out are all accpetable lines IMO.

TURN: Standard, given the way you played the flop.

RIVER: Against a non tricky opponent I like betting here and picking up another Big bet from Ace high.

All your lines are reasonable postflop IMO.