Just received mine in the mail 2 days ago. Already had a Scotts damper so only ordered the mount. After shipping and forex exchange came to $260 USD.
Machined pieces are all high quality and finish of the riser mount matches my 2013 bars/clamps perfect. Tapping threads into the two existing holes near the steering stem is required. Might have to remove the tank and airbox to do that properly. After that everything is bolt on.
The rise is only 15mm. I wasn't planning to ever raise my bars as close enough but 15mm will make them perfect. I much prefer underbar damper mounts. Probably wouldn't have installed one if over the bar.
Cost is not cheap but not crazy high and the only current option that I know of. Since I already had a damper my decision was a little easier. I was on the fence since this thread first got started and OTR identified. What convinced me to order was a conversation I had with an even older rider in March. He said consider it a safety item. First time you hit a big rock wrong and the bars get jerked out of your hands and crash, you'll wish you had already spent the coin and installed a damper.