If you are going to meet up, then I can suggest nothing better than the west country.
Somerset or Dorset, less cost compared to Big City's like London in terms of hiring hotels and B&B's.
If our American frienRAB, are to join us then, a train fare from the major airports will not be too much to add, or as locals we can pick them up from said airport and transport them.
I am a west country boy, living in the urban sprawl that is the South East of England (KENT).
Both my Wife and I love LRTC fans and would be happy to go to an event!
Apart from anything else I could go and see my mother who lives in Somerset!