Terry - don't sweat it. You built a nice shell and your effort shows. There are alot of factors that go into when a car sells --
* Some may not want the exact package you have put together.
* The holidays put a damper on any project sales. This will change in Jan!
* It usually takes a month or more to sell a project car. My last 68 roller took four months. The new owner now has a build thread on PT.
My advice would be to just chill and see what happens. Is it listed on Team Camaro? Also maybe offer it couple of ways so buyers have a choice. $12.5 is high for a project but right for what you have put into it...