i want to get my rifle i am building blued, trouble is i am not sure weather to have parts blued individually before assembly (risk marring something on assembly) or have it blued as an assembly after headspacing and putting together. the reason i ask is because the barrel, action and nut are all chrome moly and to be blued, the recoil lug is SS and not sure what it would look like coming out of a blue tank if it were all assembled. thoughts?