Stay with the same locale...
Mixing them just increases the risk of having females sold to a person who does not care what locale she is... Then they are eventually labeled something pure.
People always end up selling their chameleons to people who they trust, and yet, people always end up over stocked or over whelmed with whatever and well... some animals end up in different hands than what we want them to be placed in... Things happen.
Why not get a quality ambanja female? I bet screameleons has something that would go great with your male!