My darling giant has awoken after winter and i am after some advice, she has 3 pups of varying sizes. The biggest of which can be seen here

I tried last year to seprate the pups, but everytime i did i found that they had no roots of there own, when is the best time as this is growing fairly well and as you can see it is in a barrell and i dont want anything to happen to the mother plant, not having enough space. I want to keep the pups and have a lot of seperate plants at different ages. When would you recommend the pup is seperated to esure a good growth on the pup. Also you can see here

that she has the left overs of the winter damaged leaves from last year, would you recommend cutting this of to tidy her up or leave them and let her fdo it her self? i do not want to cause any damagfe to the mother plant as she is doing really well and growing very fast now she is out of winter, not sure if that is due to the barrell used to hold whskey lol. I am grateful of any help or advice. Thank you Mark