Mitchell,
The left handed Mk V in 30-06 with walnut is not a common configuration since Weatherby moved their production
of the Mk V back to the USA. If I am not mistaken the only left hand actions offered are the magnum nine lug action.
In the past, when production was in Japan, they did offer the standard caliber six lug action. I had a Left Hand Euromark
in 30-06 purchased new that I traded long ago and still regret to this day. They ARE out there though. Check the usual
sites like Gunbroker, Gunsamerica and Gunsinternational as they do pop up now and then. Hope this helps you.
Rg