Big Tournament! Help!

[JTrout]

I've agreed to help in running a 72 player fundraising tournament. And I'm in over my head!
I need some help/advice/suggestions in making this a success.

Here's what they want:
No-Limit Hold'em.
72 players.
8 tables.
$65 entry fee
$50 rebuys (unlimited for 90 minutes)
$50 add on.
a rules sheet, with blinds structure and such.
app. 4 hour duration of tourney.
beginning stack of about $700-$800.

So, I've got a million questions:
How many chips will I need? (July 30th tourney date. I'd like to get (cheap) chips personalized (maybe with as little as 4 letters. NWTF all funny guesses welcome [img]/images/graemlins/smile.gif[/img])
Denominations?
Blind Structure?
How many chips for re-buy?
add-on? (this being a fund-raiser, we want to encourage re-buys and add-ons)

I remember seeing a link to a sight that covered much of this, but can't remember it.

All suggestions appreciated.