I once had a buddy with similar ideas. He quit his $100K/year job, sold his condo, put everything he owned in storage and set off on his bicycle adventure with minimal training and preparation. He was planning to ride cross-country or up to Alaska or something like that. He lasted five days before selling the bike, taking a $120 taxi ride to the nearest airport and catching a plane home. Turned out he hated camping, decided he'd bought the wrong bike, and wasn't prepared for the loneliness of the route he'd picked.

Not suggesting that something similar will happen to you, but I am suggesting it wouldn't be a bad idea to do a couple of long rides on back-to-back weekend days or maybe even do an overnight trip before embarking on a 1000-mile epic. Just a thought...