Duracoat University is not Camoflauge S.O.H.N.
School of Hard Knocks
NIC Industries AKA: Cerra Coat also offers a class which I inquired about this past winter since it's right down the street. The class mainly concentrates on the prep and mechanics of application to prevent 'process' failures. Since I do protective coatings for a living I just need to downsize my equipment alittle.
I went with the Cerra Coat H series (Forced Cure 250-300 deg 2 hrs to 45 min respectively) over Duracoat because of the faster cure and better durability on my AK and G3 builds. They also offer an ambient cure C series (5 day) that can take 1200 degree heat cycles and a couple that can take 1600 or better. According to the rep, the ambient cure can be forced alittle but I don't have my notes handy.
They will teach you the application instructions step by step, equipment selection/set up for optimal performance, cleaning, abraisive blasting, QC guidelines, mixing/thinning procedures, the use/maintenance of spray gun airbrushes, and curing. They probably will give you some guidance as to stencils ect but I have seen no real books on the nuts and bolts of the application processes and techniques of camo besides an old Army FM.
You didn't specify if you were planning on offerring it as camo, I just assume.
The art of camo is a learned/hands on task that would take a week or more to teach with multipule P.E's. I think there is a guy on TOS that does alot of duracoating in his home shop and has posted quite abit about it. For technique, I would search gun boards and look at folks finished work and talk to them about how they did it.
Since you have to blast the surface as part of the surface prep you could also parkerize prior to coating. Parking isn't hard and would offer 'another' product and added surface protection.
As far as 'Offering it as a product', I would keep to the basics at first, i.e. slide one color and the frame another. That is where I'm at and will most likely stay with the cerra coat. To be competitive in the camoflauge market you'll have to meet or beat the camo competition. I would practice technique on old stocks ect and if they turned out good could be kept for ref/display.