100 NL value

2nd hand at the table. no reads. I raised the first from the BB against an EP limper. he folded pf.

PokerStars Game #13940681197: Hold'em No Limit ($0.50/$1.00) - 2007/12/18 - 11:01:13 (ET)
Table 'Lucina II' 9-max Seat #7 is the button
Seat 3: Charmer1973 ($116.05 in chips)
Seat 4: dutchie1122 ($47.65 in chips)
Seat 5: King John 1 ($83.85 in chips)
Seat 6: 1p0kerboy ($96.95 in chips)
Seat 7: alprausch ($17 in chips)
Seat 8: pgil ($101.50 in chips)
Seat 9: fesar ($134.25 in chips)
pgil: posts small blind $0.50
fesar: posts big blind $1
chimmer: sits out
*** HOLE CARDS ***
Dealt to pgil [6c 5c]
dutchie1122 said, "what did you have??"
Charmer1973: folds
dutchie1122: calls $1
King John 1: raises $2 to $3
1p0kerboy: folds
alprausch: folds
pgil: calls $2.50
fesar: folds
dutchie1122: calls $2
*** FLOP *** [8d 4c 2s]
pgil: checks
dutchie1122: checks
VICTORY68 joins the table at seat #1
King John 1: bets $4
pgil: raises $7 to $11
dutchie1122: folds
King John 1 said, "better than you on flop, when you bet"
King John 1: calls $7
*** TURN *** [8d 4c 2s] [3h]
pgil: bets $22
King John 1: calls $22
*** RIVER *** [8d 4c 2s 3h] [3s]


what do you bet on river here. he has stuck around when i have shown obvious strength. do I put him in, or do I bet about half his stack?

If I counted it right then he's got 47 left in a pot of about 76. I don't see him having any sort of draw on the flop or turn so I go ahead and put it in since our hand is very disguised and if we're beat we're getting the whole 47 in anyway.

I'm virtually never behind here. I am just looking for suggestions for getting the most out of the hand against a standard unknown.

any thoughts on flop/turn play?