What are your plans for the rear sight notch in the hammer? I believe the factory barley corn type front sights on the Uberti Walkers I have are maybe .060” across the top. Anything wider will obviously fill the notch in the hammer.I don't know, the more I look at that narrow front blade .080 the more I think I need to mill out another with a wider lower base/skirt and blade of .100 or perhaps Ruger Blackhawk width of .125.
I think a wider base skirt covering more of the female dovetail barrel cut will look better and the wider blade make sharper target definition.