1. Get a Class 2 medical.
2. You need to get a partial accreditation certificate from 3FTS at Cranwell.
3. Do all your exams if you have not done the EFT groundschool at Cranwell.
4. Get your logbook stamped by the CO of the UAS you were at to show all hours correct.
5. If you did a dual landaway whilst at UAS you should only need to do the solo, if not I would expect you would have to do a dual and a solo.
6. You will probably have to do some conversion training with the school to prove your skills to them.
7. When you have done all this, send the relevant paperwork along with your fee, medical certificate, logbook and accreditation certificate to the CAA.
8. Await shiny new PPL.
These are the steps I took to convert my EFT training into a JAR PPL(A).
Hope this helps.
Jucky