There is a very good 2 volume pictorial history of 7th Armoured Division by George Forty who is/was curator of the Tank Museum at Bovington. Well worth having and probably not that expensive.
My mother's brother was 6RTR in 7AD until he was transferred to Divisional Tank Squadron (7 tanks)(guarded divisional HQ) sometime in 1942, earlier than later. He was a regular and credited his survival to peacetime training. He went all the way from Libya pre-war (Heavy Armoured Brigade) to Berlin.
Apparently, I was in my pram in spring 1944 when my mother came out to check on me. She saw a fit bronzed soldier walking up the drive. It was her brother. They were back in UK for retraining and re-equipment for Normandy. Many years later he told me that tank crews were sent to the factories to see the new British wonder tank the Cromwell. They were not impressed, having met Panthers and Tigers in Italy.
