[W]: ~20x old booster packs

might be an odd request...but I want to buy an assortment of ~20 boosters from old sets to host a chaos draft.

looking for anything higher than 6th edition, up to M2012, and <$7 per pack

As long as you can beat coolstuffinc prices, I will gladly take these off of your hands.  Thanks, let me know what you have!  I can make payment by paypal.