My career change was forced on me, sort of. Our parent company filed bankruptcy, and closed our shop. I had a year notice that this was going to happen. As with you we had time to prepare for this "move" With my experience, my suggestions would be. Save as much money as you can. You will never have enough. The reason I say this is for the things we take for granted. Take the lil things like running out to get a pizza, or stopping to buy the wife something on your way home from work. After you leave your current job, these things won't happen. If your set on doing it I would suggest setting your lifestyle in the way it would be when you change, before it changes. Things that you don't worry about now, you will then. I'm very lucky that my wife supports the choices that have been made. Now this is going to sound bad, surely not meant to. Will your family support your change? Good luck wish you the best. Oh BTW this is the happiest I've been in years
Mike