On my boat the original fairing job had a piece of wood (about 3/4" square) added down the leading edge, then glassed over. The lower part was damaged over the years, so when I re-did it I used a stip of fiberglass instead of wood (it won't absorb as much water). Not rocket science, but time consuming. Especially the detail fairing once the shape was close. A pro could probably do it faster, but I've heard its costly.
Ed Austin
Chinook
