These chips are fairly hard to come by. Also even if you find what you want it will cost a fortune...to support a 3-4 table deep stack game.
I would recommend going with a set that is readily available from a retailer then you can get exactly the quantities of each denom you want.
Hot stamp Atlantic:
http://www.classicpokerchips.com/stock/atlantichs.htm
Set of 500 for $ 610 shipped is a fantastic price for brand new chips...
Atlantic Inlay version:
http://www.classicpokerchips.com/stock/atlantich.htm
These are about 2 bucks a chip shipped which is still a good price considering you will need a mountain of chips.
If it was me running a multi table tourney I would buy bulk used ceramics, china clays, or if my budget permitted I would get the atlantic hot stamp set.