Yamaha 841

Has anyone come across a Yamaha YHR 841 compensating double horn? If so, any ideas on how much one that is approximately 15 years old might be worth? Thanks!

I haven't come across this model before, but I can tell you that the 800 Custom series of horns from yamaha don't come up for sell very often and when they do they fetch prices equal to or greater than new prices( when they were being made ) more times than not. So if you can get it for less than $5000 it would possibly be a deal.