Just be careful buying from Ebay, there is a guy who claims all of his Reeve (Movie), Cain (TV Series), Gerard (Superboy), costumes are authentic, they are not.
I did a replica L&C costume to wear when I proposed to my wife.
I think I have a pic of my cape logo at home, but I'm out of town till Monday. Here's a pic of the front of the suit I had online already.
I based the cape off of an original Chris Reeve cape I own. We're getting ready to move in a month or so, but once we get settled, I may be able to help you out.