no way you can flat the flop bet. you're giving him perfect odds with a draw on a soaking wet board. since the initial bet is 2x min-bet, i wouldn't even really consider a re-raise from him to be a bet/3bet line. i would think of his range in that case moreso in terms of what he would raise the flop with if that happened not what would he 3bet the flop with.

anyway, def raise the turn more for the same reason. now that he's stop bet both streets i definitely put draws in his range just as much as BP or MP. as of the river i'm much more worried about KQ/JT/K9/Q9 that's been played retarded on a wet board than i am about a naked nine. i think busted draws are more likely here, especially given his stop bet/call line on the turn

knowing his call PFR stat always helps me put him on a reasonable range. different laggs have different reasons for folding PF and sometimes a PFR is one of them.