lads in our shop are currently going through phase one,two and three via abaris in oxford over 3 weeks, links below. No need to have a B1 but I have heard in the last few days that in the near future the CAA are looking for you to have some sort of license A or B to carry out the work. Don't know the details as of yet, I'm sure someone else will be able to clarify.
Abaris Composite Training - HOME
As for NDT i know its a different license set completely and its expensive, again I'm sure someone will be able to give you more info.