Live $200 Deepstack Questions

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Going to a homegame tourney this afternoon:

$200 buy-in
Will be ~30 entrants
10,000 starting chips
25/50 starting blinds, increase every 30 minutes
Top 4 places pay

With the stacks so deep during the first couple of levels, how does this change my early-on play? For example, let's say I get HU pre-flop with KK or QQ (perhaps even AA?)... what would be the appropriate number of re-raises before it would be right to shove? Or would it be wrong to shove PF and just see some cards?

I find that in the early levels of deepstacks like these, both live and online, most players are willing to call down with a HUGE range of hands/draws... should I mimic this behaviour, trying to catch some unlikely monster and punish their passivity, or play tight, but risk falling quickly behind to the aggros who are doubling through? I don't think I'll see enough hands over the course of the early/mid levels to afford waiting on premium hands...

Any other thoughts on this format would be greatly appreciated... thanks in advance!