Well I believe that you are on to something. I would not give up on the inlay but I would try something smaller and a different shape more in line with your desigh. The round dots don't blend in well because you have no round shapes in the design, also they are not centered. There are plenty of shapes that are more associated with southwest and thats what I would research. The other thing I would do is use one of the kits in platinum or chrome, when I was in the gift business silver was much more popular than gold hardware when it came to southwest merchandise.
Wayne