Ahh, the "flexibility" of Exercise 3 - The Trial Lesson.
Take 1 flight school, 1 R44 and 1 pilot fresh out of his FI course. Bingo, it's like having an A-to-A AOC without any of the bullsh!t.
Leave the duals in, don't charge per seat and (from what I've seen during my time in the industry) the CAA will be happy bunnies.