Thanks JXK, but I had already been down that route and spoke to half a dozen companies as well as the CAA. It was not a lack of organisations, rather it was a lack of cohesive answers from some of them. Some in direct opposite to what the CAA were telling me.
On the bright side I have spoken to 3 organisations via these forums who have al told me the same story independently and that matches the CAA statement.
One of those will be doing the work for me. I will not being going into a 'controlled' environment though.