My uncle has a Ruger Vaquero in .357 and he wanted me to do some searching. He wanted me to find a gunsmith within 50 miles of him (Don't think that's far enough) that will replace the factory front sight (it's just a graduated fixed post) with a dovetail front sight to where he can put a modern front sight on, but keep the current rear sight. First off, is this possible without ruining the gun? He also said if a dovetail isn't possible by cutting into the barrel, then if a bar running from the top of the frame to the front sight and have a new sight mounted on it would be possible (I'm doubting this method)? I'm guessing Nashville, TN would be the absolute farthest he would want to go. Can I have some insight and suggestions please. All of it will be greatly appreciated!