Some friends and I want to travel to Japan for the summer, as a senior graduation trip of sorts. I've got my hands on some friend passes with Delta(The pity sighs, I hear them) for $400 bucks each, and we plan on leaving in late June, just before the Japanese Summer Break. I've made plans on getting a place through the Tokyo Craiglist, but this seems unreliable. So, /trv/ advice, recommendations, what would my expenses be, recommendations on accommodations for up to 8 people, etc?