Silver Ghost;

At least on the shifter side the special axle nut used has to go on a certain distance for lining up the shift chain marker with the window in the nut for proper shifter adjustment. Spacing the 120mm hub to 130 might not allow this so shifting chain adjustment could be a PITA. I suspect that a longer axle on that side, minimum, would be necessary for the wider spacing. Maybe also a different shifter chain assembly.