Bundle wrapping is the way to go, though I recommend doing two bundles, stacking them one on top of the other, with the first one containing most everything, and the second, just one complete change of clothing, the ones you want to wear first after arriving, even if that's just your sleep clothing. Otherwise, it's a real pain to find that one sweater or whatever when you're tired and don't want to deal with the whole bag.
Right now, my understanding is that Red Oxx will be shipping the HC bags individually to folks, though I've sent an email to confirm. If that's not the deal, I, quite frankly, am not willing to deal with shipping out larger bags to everyone getting one, so we'll see.