I have ordered them with all red spacers before. I have also had a set or two made with black micarta handles. I don't know about the brass reduced hilts but I feel confident it's doable. You will not be able to duplicate the handle "shape" of the chef's knife or the thickness of the brass hilt as those are unique to the Chef's knife.
I have ordered (for my order coming out just before the "Blade" show) a Chef's knife and a "Large Filet" knife made up for RKS folks to see at the RKS meeting. The #6-9", Large Filet has a brass single hilt and a black micarta "Border Patrol" handle, along with all red spacers. That's about as close as I could match them up...Hope this helps.
Best, Capt. Chris