If I were you I would wait a few months before purchasing the Hangar 9. Sometimes these first round productions have problems. That way you can weed out all the suckers.
Doesn't hurt to shop but wait and see how all these are holding up. Remember the infamous Edge 540 and the wing failures. Sure they replaced the wings on those who had not flown the plane yet but to those who stuffed them had problems trying to replace everything the crash destroyed.
Plus KMP seems to be preety good. have not seen much if anynegative comments. As far as retracts go. I have owned many of these planes that have complaints on the retracts and to me its a pilot skill thing. I have not problems with the Model tech P-47, WM P51 and others with their standard retracts. The mounting rails need to be beefed up and they'll be fine. If your landing on grass then you will have problems but that just goes with the turf