Working from the rear of the arch forwards -
110mm
190mm
190mm
190mm
190mm
190mm
200mm
Distance from a to b 800mm ( there is quite abit of flex in the arch tho so this can be adjusted ). I cant really see there being a problem with the arches fitting tbh. Pictures would be awesome ! With regards the spacers. I had 55mm ones fitted. 2 days later had to replace drivers side hub, cv joint, seals, bearings, swivel ball, everything. Nearside was fine tho so could have been coincidence but I felt uneasy with them on after that.