Welcome to both of the new members here in this thread.
To VaqueroNC, please understand to add fiber optics to a fixed sighted gun will require gunsmithing, and $$$. While Hi-Viz offers an easy front sight fiber optic for the stainless Blackhawks, and for the Ruger SA's with the screw on front sight, none are offered for the Vaquero model. You would be money ahead to sell the Vaquero & buy a Blackhawk of the same caliber & configuration if you must have fiber optics.
But, if you are committed to adding Hi-Viz to a Vaquero, as noted, a gunsmith will have to remove the current front sight, dovetail the barrel, add a base to allow the height needed to regulate the sights, and then add the Hi-Viz.
Where in NC are you?
Harthun, I'm not sure of all your abbreviations. What is rmr & rmds?