l1 post flop draw hand ($55reg)

[The Yugoslavian]

$55 regular...no valuable information on the players in this hand.

Seat 10 is the button
Total number of players : 10
Seat 1: RobMc456789 (1920)
Seat 2: Hero (2000)
Seat 3: Mattallicat1 (2060)
Seat 4: iamdondon (2000)
Seat 5: StonePoney (2000)
Seat 6: wwaapp (2000)
Seat 7: zyprexa (2100)
Seat 8: BluesBassist (2000)
Seat 9: killmekillme (1980)
Seat 10: skeeter1729 (1940)
RobMc456789 posts small blind (20)
Hero posts big blind (40)
** Dealing down cards **
Dealt to Hero [ Tc, 7c ]
Mattallicat1 folds.
iamdondon folds.
StonePoney folds.
wwaapp calls (40)
zyprexa calls (40)
BluesBassist calls (40)
killmekillme folds.
skeeter1729 folds.
RobMc456789 calls (20)
Hero checks.
** Dealing Flop ** : [ Jc, Qc, Qh ]
RobMc456789 checks.
Hero checks.
wwaapp checks.
zyprexa checks.
BluesBassist checks.
** Dealing Turn ** : [ 9s ]
RobMc456789 checks.
Hero checks.
wwaapp bets (100)
zyprexa folds.
BluesBassist folds.
RobMc456789 calls (100)
hero?

The main issue I have with this hand is that given the weak bet and weak call I'm not sure a ton of hands are paying off a club river very well. Additionally it's not clear how much to value my outs...are all the flush ones good? Are the tr8 outs tainted or up against KT/AT frequently?

On the other hand there are 400 chips in the middle and it's only 100 to call...

So how many outs do you think hero effectively has here?

And if hero calls, what bet size should be made? If SB bets should hero try to get it allin?

Yugoslav