The part of the chassis where the ARB bolts to is identical on all saxo, 106, and even ax.
All the holes and mounts are there, even vts/gti models still have all the mounting holes for the base model arb etc.
As long as you have the correct bushes for the particular arb that you have and also the matching mounting clamps you'll have no issues.
BTW im free today if you havnt had your springs and dampers swapped over yet