Unless you purchase adult birds, there is no way to be certain they are show quality. The term means different things to different people. No hatchery will have show quality silkies; some have better or poorer quality than others, but NONE have show quality.
Realize that red is a project colour, not a recognized variety. The other varieties you listed are recognized. Are you looking for bearded or non-bearded? Unless you get adults, gender is not certain or known. The American Silkie Bantam Club has a number of members from the New England area.