Gigantic 30/60 pot, 51.5 bb's

[mach3]

Since the hand converter is not working, I'll try to summarize. I'm in the BB and pick up TT. First 4 limp, LP raises, button and SB fold. I 3bet hoping to knock a few out, UTG calls, suddenly tricky donkish MP caps, everyone calls??? 6 to the flop: Js-6d-Ts.

I check, UTG checks, donk bets, 2 calls, LP raiser raises, I raise. Now it gets odd - UTG caps, everyone calls.

Question: What do you put UTG on here? Flush draw? 2 pair? Trip 6's?

Turn: Qh. I bet, raise, raise, capped before it even gets back to the original LP raiser. Everyone calls.

River: 2c. I lead again - silly? UTG raises again, donk is all-in at this point, other dude calls, now original raiser just calls. Call or raise?