Joe I would definitely try to keep that line as local specific as possible at least up front. Doing so will bump up their value by limiting the number of females you can breed him too (limiting supply) and keeping the locality enthusiasts interested (maximizing demand).
Alternatively, if you are unable to locate a locality-matched female by the time he is ready to breed, I would consider outcrossing. It would be a shame to loose that animal and its genetic potential while stubbornly waiting for a locality matched female.
Just my two cents.