I pretty much agree that $2,500 seems a bit high.
But on the other hand, it is advertised as a running, sorted, titled bike and a lot of the cafe conversion heavy lifting (frame hoop, rear sets, relocated electrics) has been done, and that should have value. I think if it really does run right, and I mean completely right, $1,800-$2k is probably not that bad a price for a ready to ride 90% there cafe conversion.