My daughter did Swan Lake Dreams with BRB in 2019/20 and it was a fabulous experience! I would say you need to live relative close to Birmingham as rehearsals were on weekdays as well as weekends - there were two other casts in other locations but I can’t comment on those.
We were 2 hours away and managed to make it work with a very understanding school but it was a huge commitment!
My daughter benefitted from it hugely though and we would do it again in a heartbeat!