The Tac rail on my MS is obviously shorter than the FS, but if you don't mind an open bottom on it, it will work.
All I'd need is your preference for color, belt size, and retention level.
Is there an interest for light-bearing rigs, or mostly w/o a light.
What I have for a "mold is my MS HC with the partial rail.
So, I can build specific for the MS HC that has the pistol completely covered. Alternative is an open bottom minimalist that has the rail aspect, but the bottom will be open for the 5" full rail models.