FWIW, many of the modern Sturmey-Archer hubs, including the x-rf4 and x-rf5, are available in both 119mm and 130mm OLD spacing. I found that a 119mm x-rf5 (w), with two 4mm anti-rotation washers, fits just fine in 126mm rear spacing. Obviously, the classic AW hubs (114mm OLD) fit fine in spacing up to 126mm, as long as you've got the longer (6 1/4") axle.
If I were you, I'd look for an '80s Japanese sport-touring frame that was built for 27" wheels and go from there.