The buttplate would be OK, though you might want to refine its shape. None of Tracks trigger guards (nor any commercial castings that I know about) are exactly what is wanted. Tracks TG-SM-1-I or TG-TN-1-I are probably closest. TG-TN-1-I needs that closed loop modified, but is forged steel, so it can be bent far more than the castings, but check that there is enough room for the triggers. I advise that you don't use any Bean style trigger guards, because they yell "Northeastern Tennessee!".
I really like Davis triggers (#4 or #6) because they are so crisp and fast, but once again you will need to do some grinding to make their looks more appropriate. The Davis trigger plate is cast and does not take well to bending, which can be a pain. I wish that they offered a machined from bar plate, even as a higher cost alternative, to allow them to be compatible with different wrist profiles.
The influences of that butt plate and cheek piece can be carried through clear to the muzzle cap.
