Well, the two speed Staton is a reality, I've been running up and down the street shifting gears. There is some fine tuning to do yet but the dérailleur is flipping between the 13 & 16 tooth output sprockets without a hitch. I spent yesterday and today brazing, cutting, drilling and filing the dérailleur mounting bracket, had to cuss a little too. I found that Vise Grips get very hot when you use them to clamp parts together and heat those parts to 1900 degrees. That was the cussing.
Since I rarely use my front dérailleur, I took it off and used the cable and lever to shift the new one. Thought about just adding another shifter but it's getting crowded on the handlebars. While I was at the lake, last week, I manually dropped into low range and went straight up some hills that were verboten up till now. No peddling, just go straight up.