For around here, thats a pretty fair price. I have no idea on the cost where you are. That being said, you could probably save your self 1000-1500 by doing the demo yourself. That is the most miserable part of doing the job. If you are thinking about a hermco bracket, you will want to raise the transom ALL the way up. The nice parts about the Hermco are the weight, and the floatation tub. These both help to keep the back of the boat UP even with a heavier motor.
My 23, you can see the old outboard cutout and the new rounded top.
