before you accept as gospel that you need a 110mm spindle, try actually fitting the Mirage with the 118 spindle you have and see what needs to change to get the ideal chainline. Since it has Swiss threading, you may find your best and cheapest solution will be to keep the cups and buy a replacement spindle, whether from Harris or elsewhere, cause the choices are very limited. There's always Phil Wood, but now your talkin' really uber pricey.