I'm not sure of any manufacturer, but a similar situation occurs on the MK I and II series pistols and I'm not sure about the MK III if it's the same or not. Volquartsen handled this problem by having a narrow portion of the trigger above the location of your finger placement. To install you put the trigger in sideways first until you got to the narrowed portion and then rotated the trigger 90 degrees and dropped it into its target position. Maybe a smith could take a standard trigger and weld to either side and do a lot of grinding and contouring to make the same thing for your Redhawk? I probably would not be cost effective at all. Just a thought. Smithy.The Redhawk trigger enters the trigger guard from the top. A wide trigger would not drop in.