Re: Multicam colors
I have been painting rifles, pistols, and accessories for several years, and can't find the exact colors myself. There are several companies out there that will paint, but very few who will do an excellent job, in my opinion.
As mentioned, I would probably go with a hydro-dip if you are wanting a 'Perfect' camo and don't want to spend $300 on a paint job. I've done paint like what you are wanting done for friends and family, but it takes a considerable amount of time and prep. That figures into the cost.
As far as durability. Are you going to be dragging it through the desert or gravel? If not, I would just go with a dipped camo. It is fairly durable, and will stand up to most hunter's abuses. Just because it isn't 'Mil-Spec' doesn't mean it won't handle most civilian abuses.
Lastly, any camo pattern can be duplicated with stencils. The amount of time that goes into the job will be reflected in the price. I once did a MARPAT desert pattern on an M40A1, and it took me 3 weeks just because I had to go in and color individual pixels with my airbrush. Now that was a headache, but it turned out perfect.