A mounting tab on the lower shell body of my Garmin 500 snapped off.  Garmin does not sell shells - they want me to send in the unit and 90 bucks and they'll send me a refurb replacement. 

Does anyone have a line on a source for a new lower shell?  There's an ebay seller in Russia who's selling them but that seems a little sketchy.

Thanks,

John Vance