yeah best off doing a deal with somebody on pulsar forum maybe, get a u13 front cut, you get the manual box (and maybe some other spares you need), they get the rest.
a while back i did call around a few importers for prices on just the gearbox, some said they could get for $1000, i talked them down to $950 or so including shipping to townsville. that was before i got my box rebuilt and stuff.