Can't the processor help? If you could get them to put the meat in double walled boxes, double wraped in newspaper, and some dry ice spread over, FedEx Ground would have it to you in 3-4 business days.
The dry ice may not be allowed. Even though, the newspaper and thick cardboard should keep the meat froze enough. Especially this time of year! Meat can be safely refroze when it has stayed cold in the center of steaks/meat. It's only after thawing out to near room temps that it is not recommended to re-freeze.