I'm gonna jump on the bandwagon for a minute. At first I agreed with Blue Streak, but now I'm gonna give some agreement to what Stunnahman said. From what I've seen on ebay as of late... a complete rebuild is probably not all that far-fetched. Since your frame is still straight and not cracked, and no other fluids are leaking from the engine case, I think you've got a pretty solid foundation for a rebuild. Just the other day I got beat out of a set of gold colored forks from an '04 Busa for $199.
I'm still pissed about that one...