its going to be every messy until you get a good process down. have you laid up cf before?
id try some practice on as many sample items you can, be it aluminum locks, or plastic containers, etc
I'm hoping he has (or has some friends) if he is considering taking on this project. I remember the first couple times I laid, while it was effective..it definitely wasn't very pretty!
As for the expense, if you think about how many phones you could do with a yard roll, it is pretty cheap if you ask me. The labor would be far more expensive than the supplies.