Ignoring the geography for the moment how about organising a two day event, as suggested by Keith, but on a mix and match basis with a bonus 3 Skills event. For example:

Day 1: Society Day at Hersham Village (the 3 Skills base) with group, or individual, 3Skills coaching before or after.

Overnight: Somewhere like the Travelodge in Kingston upon Thames which would be a good base for:

Day 2: Society day at any number of reasonable courses - Malden, Surbiton, Richmond, Coombe (the cheaper of the two Coombes that is ) etc.