chipleader against a loose big stack!

[joao_,martins]

160 person multi-table local tournament. paid out 15 and now have 6 people left. I am chipleader with 129,500... second place chip-stack is a complete donkey with around 100k... third place has about 40k.
blinds 3k-6k.
everyone opens to aggressive young player with around 30k. he open raises to 15k on the button.
SB is second place chip-stack and he calls.
I look down and find Q [img]/images/graemlins/diamond.gif[/img]- Q [img]/images/graemlins/heart.gif[/img].
I want to set the kid all-in but i clearly dont want to full around with the other big stack.
Whats my move against this guy who is likely to call me with a wide-range of hands? ( just to give you an example he open raised MP with QJoff and called a re-raise from BB... when the flop came 842r he called an all-in twice the size of the pot with his queen high )