Just wanted to add that ATF asks for 2 signed forms be sent to them, No copies. Upon approval they keep one and send one back.
Hopefully your rifles are in a little better shape than ours. When I unpackaged ours, I found that they didn't do a very good job of packing it in cosmoline. The operating rod was pretty rusty. A little bit of Hoppe's, some steel wool, and some elbow grease cleaned it up though. Also, if you get the fiberglass stocks, which I'm sure you will, the steel wool also worked nicely to smooth out the surface on them. I had quite a mess by the time I was done though. If you want, I could probably get a picture to send off to you.
Natez,
We got a M14 recently and we already received the approval from ATF. Except, I sent a copy of the Form 10 to the State 1033 Coord., before it was approved. Do they need a copy of the approved form. I haven't heard anything back yet, so I'm guessing they don't.