How do you play this from here? (deep stacked poker)

the villan is a 28/21 over more than a hundred hands. I get the sense that postflop, he's pretty tight.

1. I'm really worried about a over set here? should i be?
2. How do you play this hand from here?

POKERSTARS GAME #6983909883: HOLD'EM NO LIMIT ($0.50/$1.00) - 2006/11/11 - 16:43:36 (ET)
Table 'Tucana IV' 6-max Seat #2 is the button
Seat 1: bonsaiking3 ($218.35 in chips)
Seat 2: TRIPSTIGHT ($167.45 in chips)
Seat 3: redgrape ($284.20 in chips)
Seat 5: R0HR ($114.85 in chips)
Seat 6: foscocity ($102.70 in chips)
redgrape: posts small blind $0.50
R0HR: posts big blind $1
*** HOLE CARDS ***
Dealt to redgrape [3h 3d]
foscocity: folds
bonsaiking3: raises $3 to $4
TRIPSTIGHT: folds
redgrape: calls $3.50
R0HR: folds
*** FLOP *** [Ks 3c Td]
redgrape: bets $5
bonsaiking3: calls $5
*** TURN *** [Ks 3c Td] [4h]
redgrape: checks
bonsaiking3: bets $8
redgrape: raises $20 to $28
bonsaiking3: raises $20 to $48
redgrape?????

My first instinct was call and then bet $75 on the river and call a push but given how dry the board is I'm not sure I like it. I'm not folding but maybe just check/call the river. I doubt most people are 3-betting the turn small for a cheap showdown but he could be preparing to fold to another raise.

Often times I don't go with my gut and I'm usually wrong so I'd call the turn raise and bet the river.

I call and check/raise the river as he will obviously bet.