I'm trying to find out if the Recce troop of the 15/19th King's Royal Hussars used turreted or turretless Stuarts while attached to 11th Armoured, also were they M3 or M5 Stuarts?

2nd question, were the AA tanks, before they were disbanded end August '44, Crusader or Centaur?

I've searched the web but can't seem to find any info or photos.

Any help appreciated.