Someone recently sent me a Rifle Shop "kit" for assembly ... probably pics in a month or so (when I finish up another project)
Barrel is very nice & does not need much (if any) finishing if you were to blue or brown it. Lock appears to be a Chambers deluxe, all other cast parts are pretty much standard quality and amount of cleanup needed as from anywhere else.
The pre carved stock was done on a pantograph - not perfect, a little asymmetrical but will clean up just fine.
At $1300USD for the kit, it's a little on the pricey side. But the parts that are doing that are the Ram rod($60), barrel($275), stock($295) and lock($400!), all a little high on their own, but you are not going to get those particular parts anywhere else.
The lock ~looks~ like a Chambers, though I think they may be using Chambers parts on their own cast plate.
So you are looking at $1700ish with exchange plus shipping and duty, probably an easy $2k