emblem placement

[hotrod68]

Hi guys;
  I'm prepping my '68 for paint and because I have aftermarket fenders I have no holes for the SS emblems and engine callouts. My old fenders were good only to make templates for the Camaro script and antenna hole because they were for some reason drilled for 1969 SS emblems and bastard engine emblems with the wrong holes. I can't make heads or tails out of the diagrams in my Assembly Manual. Short of spending $25 for a template kit, can anyone tell me how to measure for the SS and engine emblems so I can drill the holes? I'd sure appreciate any suggestions. Thanks!