Good work mate. I've just got started on some kettle bell drills, its probably been 15 - 20 years (fuck me ) since I did any weights as well. I picked up a 16kg weight from Amazon for 30 quid which feels about right weight wise. Im doing the drill Missy posted plus some other excercises from the sheet that came with it, the guy doing the excercises in the pics is Lee from Steps

Anyway, good luck with it mate.