Hi Andrew!
Welcome to East Anglia.
If you are thinking of joining a model Engineering Club, you would seem to have more than one option.
Being a member of Peterborough, I am biased but we are probably the nearest, (Don't be too worried about distance; we have members from as far as Boston) We recently ran our portable track at the Ely Model railway Club show at the Isle of Ely College.
Our members have a wide variety of interests, and so have an equally wide variety of skills, should you need help or advice. (Being a retired employee, i am a member of the Perkins Heritage Group, and occasionally go to Hereford to volunteer at The WaterWorks Museum, and others have interests in classic scooters, and classic cars; so you won't be alone)
Take a look at our website, to learn more about us, (next meeting will be July 2nd)
Other possible clubs are Cambridge, or St Neots, (Peterborough members have contacts there, as well as further afield such as Leicester, or Northampton)
You will already know that other posters have interests similar to yours, and the advice that is freely given.
Hope that this is some help
Howard