Doubt very much that this:
http://cgi.ebay.de/ws/eBayISAPI.dll?...m=310128026143
is from JG 5. If indeed it is from the Far North it is from 1.(F)/124 which had a few G-4/R-3s (but never enough, I have reports where they ask for replacement aircraft and it did take a long time before they got them - can't see them being "wasted" as fighters!).
Regards,
Kjetil