I'd wait for Kibler.
I got a parts set from a famous name supplier of hawken rifle parts sets. The first stock was no good, it was replaced. The next stock was also junk. 3rd time is the charm, I built a stock from a plank.
The inletting of a hawken in the hooked breech area has several things going on at once. Even after a bunch of rifle builds it was very challenging. I doubt any mortal beginner would do a good job without experienced help.
The supplied breech plug had a 1/8" flash hole that clipped the edge of the powder chamber. That created an uncleanable fouling trap. The little hole also came within a couple thousands of breaking out at the junction of the threads and the flat face. I threw that away and machined another from a rough casting. I did it right with a powder chamber and cross hole.
Kits are a box of parts from which you may be able to make a gun. Precarve stocks are usually a mess. IF you try, for gosh sake, do not get one with a pre-inletted lock.
I am happy I did it. It was a good learning experience. In the end, the rifle is just to heavy and cumbersome for my tastes. It is a safe queen.
I have no experience with the Washington state boys.