I can't help you as far as searching junkyards in CA.
I was thinking of using a an earlier bumper on my 65 Dart wagon. I ended up buying a used, straight 63 Valiant bumper and the bumper brackets from member Waggin. The 63 Valiant bumper is nice and thin and thought it would look good on the Dart plus it already had the holes for the bumper guards, which I wanted (never did find the bumper guards for a 63 Valiant!). I needed to modify the bumper brackets a little to fit the Dart front clip. That was the plan until I decided to part out my 65 Dart convertible and use what parts from the convertible on the wagon - like the re-chromed front bumper and NOS parking light assemblies I have.
If you're interested in the 63 bumper and brackets, let me know as I will not be using them now.[/QUOT
Do you have any pictures with the valiant bumper on the 65 dart. I have been thinking of changing my front number as well. I might be interested in it .