Not sure if it'll help you for this year, but building a grinder with an in-sink disposal is a nifty way to go, and isn't nearly as expensive as a boughten shredder! I ended up getting a pretty good extraction yield (14.9 lbs/gallon at 1.050) with the fine pulp that came out (of course, that could also be from them being juicier apples, too). The only downside I have, so far, is that the apples have to be cut up into quarters (at least) to fit into the grinder. Oh, and the motor can overheat if you run it too long (unless you modify it by attaching a different motor that'll run continuously, like the whizbang cider guy did). I just blew a fan on it, and that helped enough to get us through...
Video is from my first batch of 225 lbs of gravensteins: