Thanks for the information, answers, and feedback! I am new to Mooneyspace, and am in need of learning how to post, respond, etc., so please bare with me as I try to figure it all out. First - Thanks for the feedback that several of you have already provide.
In answer to a few of the questions regarding the CFI as it relates to having or desiring right seat brakes, I am a commercial airline pilot, and also an active and certified general aviation instructor. I'm not planning on using the Mooney (once we have one selected and purchased one) for instructing other pilots. This would not be a leaseback airplane. The airplane would be my personal airplane, and I would normally fly it from the left seat. I do have 3-boys including a 20 year old son who currently holds a commercial pilot license with instrument ratings. He is the one who is working on his CFI certificate, and in hopes that we could add right seat brakes. If we could equip the airplane with right seat brakes, it would allow him to do some Solo Flying from the right seat while he is practicing for his CFI certificate.
My Son, is the only one that I would consider instructing in this type of airplane. With him working on his CFI, I would be sitting in the left seat while he was in the right seat. There would be no issues or problems with this arrangement. The lack of right seat brakes limits his ability to fly Solo from the right seat. Neither he nor I, would be planning on using our airplane to train anyone else. This would be a primary airplane for our use and enjoyment.
I'm not sure if the effort and expense is necessary or required, but it could be a more comfortable feeling for those few situations when I might find myself sitting in the right seat knowing that I'm ultimately the one responsible for the final outcome. The bottom line, is that in all of my experience with general aviation and airline flying there are very few airplanes that I've ever flown or operated that did not have brakes on the right side. I guess this is my inexperience, lack of knowledge and general comfort that causes me to ask the question. Once again, I appreciate the feedback from all of you.