I'm doing it too but not finished yet. These are my ways
1. I using AB Iwata HP-C with the Automotive Air pump (Yes you can see it in the Garage) 1/4Hp.
2. I mark the spot by Pencil 2H
3. I spray with 1 1/2 - 2 Psi Air pressure
4. Thin the color like milk
5. Pull the AB tricker slowly but when you point to the model it must like a needle edge.
6. Always clean the nozzle cap by old paint brush put it the cleaner which you use and soak in the nozzle cap easily (Don't take the nozzle cap off) because the color always dry in the mouth cap. every few spot.
7. Keep the Air pressure on 1 1/2 - 2 Psi alway
8. I don't know what kind of color that you use. But I always use Gunze Acrylic After finished let them dry for 1 day I clean the camo by cotton Buds with the Ronsonal (Ronsonal is the fuel for Zippon Lighter) because of the Ronsonal is Neptar, The solution of Enamel color but Neptar in Ronsonal don't harmful your model but you health.
9. wipe the spot by cotton bud w/ Ronsonal on the spot every spot
10. You can apply to aircraft with camo.
I always use like that and next time I will show you my model with that ways. I keep my word
P.S. First of all you should try on the paper or un-used model.