I'd peel, chop and blitz the whole lot in the microwave to cook it, then freeze it in useable amounts. You can then use it at your leisure for anything you like - crumble, pie, apple sauce, apple sponge, apple Amber, apple tray bake, presents, etc.
What seems like masses now, when blitzed in the micro (or stewed in a pan) reduces down considerably. I used to do this with cooking apples from my mums tree,never wasted a single apple.