I'm no help on stake on sights, but a front dovetail cut should be less than $50. Was the price quoted in this ballpark? I would hope someone local could do it for that, but Rich at Canyon Creek does them for $35 and Gary at Gan's Guns charges $45. Both do good work, in my experience, but there are litterally tons of folks that could do a front dovetail. Shipping wouldn't be bad either since all you would have to send is the slide.