I live in Japan, any questions?

SCHWEINE!
Mit wie vielen Leuten fahrt ihr, wie lange und was kostet euch der Spaß?

Huh ... I'm smelling jealousy, am I right?
Well, we're four people (myself included), our round-trip will last three weeks and we expect it to cost about 2500€. Can't tell an exact price. It isn't managed by a travel agency and we haven't all planned yet. Flight, train tickets (Japan Rail Pass) and hostels are booked. But we don't know what it costs to... eh... being there and doing tourist things.