Rottie, you mentioned looking at buying a Camaro harness? The Camaro had front side markers I believe, as they had the front turn signals in the grill, while the birds had front signals in 67, and made them wrap around the front corners in 68. So for your application, it sounds like you'll need the harness with out side markers (much like the 67 Camaro harness)

Hope that makes sense?

Brett - 67 Drop Top 455!