You sound useful. If you've got experience then the course I did would get you to the level where you can apply to be on a scheme. Then you can self-certify any notifiable work. If you have a previous qualification, like a 3 year NVQ then you probably only need Part P and 17th edition C&G. You can take the exams without tuition for less than £200. On part P I went from 60% with no book in online tests, which is still a pass, to 95% in the exam with the book after 4 days tuition. So it's fair to say it's easy enough to get 60% but the course gives you a bit more confidence.
You sound useful. If you've got experience then the course I did would get you to the level where you can apply to be on a scheme. Then you can self-certify any notifiable work. If you have a previous qualification, like a 3 year NVQ then you probably only need Part P and 17th edition C&G. You can take the exams without tuition for less than £200. On part P I went from 60% with no book in online tests, which is still a pass, to 95% in the exam with the book after 4 days tuition. So it's fair to say it's easy enough to get 60% but the course gives you a bit more confidence.