I've already posted the information from my resource.  The CD indexes have most of the information with the exception of trade and residence.  I wouldn't waste my money purchasing certs in SA 
   SCHROEDER Friedrich Heinrich 28 years  Status Single  Father Wilhelm SCHROEDER
RUBEKAMP Adeline Louise Dorothea  27 years  Status Single  Father Fritz RUBEKAMP
10 Nov 1913
At the residence of Rev F W Basedow, North Unley   Ade S 257/446
Information on a 1913 marriage certificate in South Australia   
    Date and Place of Marriage
    Bride and Bridegrooms Names, Ages and Rank 
    Trade
    Residence
    Father's names
    Church
Death
SCHROEDER Friedrich Heinrich
Father  Johann Wilhelm  Mother Betty Anne SIEMERING
At Murrayville  1931 46 years  Reg#6471
Cando