Thanks for the pictures...they certainly speak volumes!
You have a very credible rifle for your first effort. It is apparent that you have studied well, and absorbed the information, and then applied it in your build. There are little nuances that 'make' the rifle, or break it. And you've captured many of them.
If I may, and if you build another of these, pay close attention to the position and angle of the lock. the tail of the plate should never be higher than the centre line of the wrist. On many originals, the Hawken bro's tipped the lock down at the rear end to accomplish this. Yours appears to me to be tipped the other way, likely in an effort to align the hammer with the nipple. You will find when you tip it the other way, just slightly, you won't have to cut the notch in the plate's bolster nearly so deeply.
Make sure your chisels are as sharp as possible...it'll make inletting easier and more accurate. Also, don't take the wood down to finish dimension until AFTER the inletting is done. Then you'll be removing most of the oops taking wood down to metal.
I like the rifle (have a soft spot for Hawken rifles), and as I said, yours is a great fist effort. Your components are superlative, and majopr fit and finish is also good. It'll be without reservation, a good shooter.
