James, we are all happy to answer questions, but you have so many that I believe you would be better served to sit down for an hour with a competent CFI (preferably one who instructs Sport Pilots in LSA's) and hit him with all these questions. He should be able to answer nearly all of them, except possibly some very specific to the Kitfox. Many of your questions are covered in basic pilot training.

I also think you are way over-estimating the dangers of Vx. Most of us do it all the time, even for fun. The approximately 60 mph Vx airspeed of the Kitfox SS7 is a long way from the 42-43 mph stall speed with 1/2 flaps.