About these photos, my cameras got settings for different size photos. I use the size for email attachment and they work OK on here no resizing. Well done to save that one catfish, I don’t think you are going to be bored this Xmas.
Looking at the photos it either a Mk 10 or 12 Villiers. If you measure the bore it will confirm. The carb is a b10 I’m guessing originally it would of had a type v carb. Do you have an air shroud, if not I may have one in my store that will fit.