Woody,
There are laser based (non-contact) tracers on the market. We have a Romer Arm at work (day job) made by Hexagon Metrology. There are other manufacturers as well. Ours is sensitive enough to read the varying thickness of the ink on stickers. The real life downside of this is they will pick up every little knick and ding in the old stock. Unless you want them replicated as well, you still need some knowledge of post processing. (Or know someone who can help.)
You may want to look into contracting the initial scanning and post processing in the startup phase. Especially if you are learning CNC as well. Easier learning by taking one bite at a time. Easier on the pocketbook too. You can still take the file and modify the exterior looks (handgrip, buttstock etc.) as the bedding and trigger area can be left unchanged.
Alternately, there may be someone out there who has already done the work. In that case paying them for the file is well worth it. Just make sure the file format is compatible/importable into the system you get.
Finally, you can also go oldschool with calipers et al and design from scratch.
Ted
PS Geomagic looks AWESOME. I'll be looking into adding it to my workshop if the numbers work.