Good call , I forgot about the flightskin one , not sure of the span , I use flightskin all the time , love the stuff !!
Also I did not look at IMP scale , not sure if they offer spinners .
I bought a BF109 yesterday thanks to the post here on RCU that led me that way , otherwise I could not find the plane on his main page ?
I plan on getting the Sierra /KMP gear so I assume I need to move my rails one inch inward in order to get the higher appearance that some have menthioned