One thing that occurs to me is that given that most of the options, frankly, are probably top notch, what kind of style of shooting are you looking on getting instruction in (Churchill, Stanbury, etc.)? It might pay to contact the schools and find out what they emphasize and to what extent they work on your particular style. I'd guess Churchill emphasizes Churchill and my recollection was WLSS focused on Stanbury but was adaptable.
Just a thought.
Jeremy