Maybe someone will be interested:
GS500E: 1992
http://cgi.ebay.com/ebaymotors/Suzuki-GS-GS-500-E-1992-Suzuki-GS500E-Vance-Hines-Needs-work_W0QQitemZ250236656614QQcmdZViewItem
GS500F: 2007
http://cgi.ebay.com/ebaymotors/2007-Suzuki-GS500F-GS-500-500F-GS500-GS500E-500E_W0QQitemZ300215562208QQcmdZViewItem