Used starters pop up on eBay all the time. I bought a used starter from a '01 Speed Triple for my '98 TBS as a spare. The starters are identical in every way. I suspect a lot of commonality among the Daytona 955, S3, and Classic Trips ('95-'02). You can check part numbers between models on Bike Bandit to be sure.
FYI - got mine for $150 with supposedly 9,000 miles. Mileage doesn't always tell the story with wear, though.