Under JAR you need a valid CofT or a valid CofE for each type.
Since you won't have either, you need a CofT, and this can be signed by any PPL examiner once you've successfully flown the full JAR PPL skills-test (GH and NAV).
The CAA website has all the details, as well as a comprehensive list of schools.
As for further training - at the discretion of FTO prior to test, so go do some flying with an instructor and then book your skills test
Let us know how you get on!
(edited cos I always spell "won't" wrong, as is my wont)