New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
Wow, that's really exciting; I'm a bit overwhelmed.The condition of the cards shouldn't matter for the most part. The reason I'm trying to start this a good six months before Creation is because I want time to sort the cards at least a little bit (or at least strap rubber bands on fifty at a time or something, so I don't just have these boxes of completely unorganized cards), so I can just figure out an approximate ratio of worn cards to near-mint cards for each of the "bundles".