Hiya boxhead..I bet you're smiling and cant wait to get that thing.
Ok..as to your scoop..Real cobras used a riveted on scoop.
Many kit producers do mould the scoop into their bonnets for a smoother appearance. My RMC for instance had the scoop moulded into the bonnet therefore not requiring a separate riveted scoop....BUT..guess what?
I cut out the moulded scoop cuz the shape was all wrong. I will rivet on a proper shaped/size scoop just as you will.
Here is an addy to the ERA web site about the scoops.
http://www.erareplicas.com/427man/body/hood.htm
You will note from that page that the original cobra also used rivets along the front edge of the bonnet.....some folks put dummy rivets to imitate this
Hope that helps