The climate is usually equal on the long distance movers. Moving from sub tropical to a northern climate would be unusual. You would think there would be a trail camera picture somewhere along that route.
What would it cost to keep and equip a good horse on a per head basis for a 25-50 head cow operation? I would think for the price of a good horse you could improve a lot of your genetics.
It made my head hurt when looking at there sight. At those prices you would be much better off to buy at a local farmers market. The dried stuff would be a tiny market.