Richard,
Before purchasing anything from these various dealers, here are a couple of reference sites. The first is a good resource for researching medals, the second is the German Dagger guys, who are knowledable about everything German Military as this site is about the Luger. Join the site an ask the members for recommendations and purchasing advice.
Good Luck!
http://www.theaerodrome.com/medals/germany/index.php
http://forum.germandaggers.com/ubbth...Board=9&page=1