I checked out a course here, in Holland, by a luthier. He teaches classes of 4 people only, the course is 6 months long and is one day a week on saturdays. It takes up the full day. They do everything themselves, including sanding, lacquer and final adjustments.
I agree with idch, I think you should offer the lacquering part too. As for sanding being given as homework...I don't know, people who never touched wood in their lives before might very well be able to screw that up too without supervision. It doesn't take much to sand a bit too much off the edges of a neck to get something thats not wide enough to fit all strings and making your neck useless. I did this mistake already and I knew what I was doing, I wasn't totally clueless like some students might be.