I had some other things done while I had it off the bike like replacing the belt, replaced the stator since it was showing signs of wear, replaced the cam position sensor, installing my Andrews EV27 cam and new bearing etc. The mechanic is a personal friend of mine so he helped me out whenever he could but to answer you questions I think he figured on about 8 hours or so on the engine itself.
Smitty901, consider yourself fortunate. When I took my bike in to find out what the problem was, there were two other Evos in the shop having the same bearing replaced. The problem starts out as a whining noise that sounds almost like a sewing machine. Unfortunate for me I did not catch it in time and the cage on the bearing came off and broke into several small pieces. Since my situation I have spoke with several mechanics and Evo owners who are very aware of the problem. I have since found out that most aftermarket cam manufacturers recommend replacing the bearing with the Torrington bearing when upgrading the cam. But all the same I'm glad someone forgot to program in all of the low mileage failures on your bike, just wish they would have done the same on mine.