Sorry Nighthunter the 6th Divisional Cavalry Regiment didn't use L6/40s in North Africa.
They did use M11/39s and M13/40s painted, as you noted, with big white kangaroos conspicuously around the vehicles. Their normal equipment was Vickers Light Mk.VIB tanks and Universal Carriers. (Has anyone done a Universal Carrier in FD?)
As an aside captured Vichy Renault R35s were used by Div Cav Regts in Syria.