I was on Wookieepedia when I found this under the R-Z1 A-wing Interceptor article (CANON):
Thanks to this track record, the Alliance obtained a number of A-wings and modified them, removing their heavy weapons and shields, in order to make them fast enough to combat the newer generations of Imperial TIE fighters.
I know that they stripped some of the armor off of it because I have watched Rebels and read on everyone's A-wing fix articles. But NO ONE has tried to remove the shields in a fix. If the shields were removed, how many points would the A-wing be worth to you?