I am the owner of one of the biggest company in the country that is organizing driving instructor courses. I have been doing this courses for many years now so I have some experience in this matter. I would like to tell you something about how those courses are organized from my point of view. First of all if there are no schools organizing driving instructor courses in your area you have to be sure that someone is interested in them. In order to do that you can create a survey for people living in your region to find out if there is a demand for such courses. If there is, than you can move on to the next step. As first part of a driver's training is focused on lectures you have to find relevant people who are willing to do it. You can always go to competition and ask about their teachers if you would not be able to find anyone in your area that has qualifications needed to do it. Try to find as many as you can so you would be able to negotiate the best price (the lowest). Do the same as far as the practical part is concerned. Look for instructors that will be useful in this part of driving instructor courses. I assume that you already have a driving school so you have cars and rooms with all facilities needed to run courses. If not, well your expenses will increase.