Wasn't too bad. Kind of fun actually.
I started with a quote from mechanic of actually $1,300. But that was for entire tune up and bike review since bike was at 77K miles or so. Besides I had already done many parts of the service requirements, brakes, air filter, plugs, and I had built my own Manometer for the throttle body sync. Oil change would come after the valve adjustment. The only thing I couldn't do was cylinder compression check. I was too cheep to buy the measuring unit.
The labour to dissasemble and reassemble took more time and effort than the measurements and changing valve pads. I spent a full day on it. I was amazed by the significant power delivery improvement which may have been driven by throttle body sync. Engine is incredibly smooth now as well. Bottom line, I spent less than $150 in parts and a Saturday morning to night of my time. One word of advice. Order new valve cover gasket and valve pads in advance to save some time. You can get a set of valve pads online for about $60 - $80.
In my opinion, well worth my time and money. However I did already own the tools necessary and I enjoy my garage time.