I know how you fell about this one. I absolutely love the 99' copper and silver. Would love to own one.... but.... I have to agree with most of the people on here that unless you plan on keeping it completely stock i would keep looking for another 99 that already has some work done to it at a better price, (which you will find) or spend that money for something newer.
I ran into this same ordeal when I was purchasing my 07'. I found a 99' Busa at a dealership in Minnesota that had been "Lost" in the back (don't ask me how that happens), with 0 miles on it. They also wanted 9K for it. It would have been worth it to buy and keep just like it was with 0 miles, but I love to ride and wouldn't be able to just let it sit, or leave the thing stock, even if I had another Busa.