Will if I were you, STOP at the 4 Queens first!

They may still have some of the chips you want in the cage. You might just get what you're looking for for face value.

Then go the convention and cry because there is no way you will pick up everthing you're looking for

Don't stop and buy at the first place you see a chip! I found out many times if I shop around, I get a better deal.

Good Luck (you will need it )