I simply cant fatham how you do it Wiz!!! Even if I were young like you, I dont think I could keep up with your schedule.
I am retired, which was actually good timing for me since my MS really started acting up and worsening in my mid fifties. By my mid sixties, there was no question of ever working again.
My advise.... wait until you are forced to retire to get your MBA. Take a course or two towards your masters, if it wont be a major stress, but a full course now, in your possible MS tranformation, would defeat your purpose. IMHO.
In the end, you will do what God has given you the strength and will to do. Good wishes Dear..