Reporting question for Vibrato - Bigsby, B5 Gold, for solid-body guitars, Gold Vibramate

Product:
Vibrato - Bigsby, B5 Gold, for solid-body guitars, Gold Vibramate

Question:
I am considering this for my VOX CUSTOM 24 (VERY CLOSE TO AN "SG" IT has tune-o-matic saddle and bridge. what are the hole distances that are required (bridge)?