suited connector hits trips... resistance

Home game... $20NL, .25/50 blinds, 7-handed
Hero ($20ish)
Villain ($20ish)

Villain will play almost any 2 cards preflop, but is very tight post-flop. All in-pushes represent a big hand about 90% of the time.

Hero's table image is somewhat tight.

Hero is dealt: 5[img]/images/graemlins/club.gif[/img]4[img]/images/graemlins/club.gif[/img] in late position

Preflop:
3 limpers
Hero limps in w/ his suited connectors

Flop: ($2ish)
Q[img]/images/graemlins/spade.gif[/img]5[img]/images/graemlins/heart.gif[/img]5[img]/images/graemlins/diamond.gif[/img]

Villain leads for $2
2 folds
Hero raises to $8
Villain pushes all-in

Hero ???

I've got about 1/2 my stack in now (thanks to our lousy 40x BB format). My kicker is awful, and villain is a very honest player when it comes to pushes like this. I'm almost positive villain wouldn't push with something like 77,99,TT,JJ. Villain -will- occasionally limp with big pocket pairs to try to be tricky, however. He's an idiot.

With stack size, is this an instant-call?
2-pair isn't really an option. AQ maybe. AA,KK overpairs seem unlikely with the preflop action. QQ is even less likely.

<font color="green">I call here every time, but never feel good about it.</font>

Question 2:
ALSO, What about a flop like:

855 instead of Q55.... would you play this differently since villain is more likely to have 88?

Question 3 - Main Question!
How do you play this with deeper stacks, say $50-60 w/ a $20 buyin.

Thanks!