Your terminology is confusing. You called a preflop raise; so you can't c-bet flop, only Villain can c-bet. If you mean that you could lead flop, you should definitely not be leading this flop because it hits UTG's range quite well; X/C or X/R are both fine.

Turn is fine.

OTR, I think folding is fine. Against this big a size, you don't have to call much at all. You will have a fair bit of Kx in your range. You can call your Tx with better kickers. The FD is somewhat but not super relevant since Villain "should" not be triple barreling his FDs.

I think a key factor here is betting size. It seems like villain is betting a lot postflop, but the question is, does he have different bet sizes? For most fish, I would assume that a pot size river bet is exclusively value so this spot is a clear fold for me with any Tx combo.

I do think you can consider a X/R on the flop. I assume his cbetting range to be very high, including a couple of random Ax combos that you could fold out. If he calls though, I would shut down on most turns. On the T turn, obviously you get some showdown value so this is not a card that I would continue betting.