I was involved in the 1990s on behalf of the Club in sourcing and co-ordinating the supply of 25 unrelated GOS pigs to the US to help reintroduce them there. It is a long and involved process but ultimately very rewarding. Based on that experience, it is as expensive to send out a batch as it is one pig so if you can pull together a group of people with a similar interest perhaps via the Canadian Rare Breeds organisation, it would make more sense. Even if the group perhaps included examples of some other British rare pig breeds. Even so I do warn you it will be eye-wateringly expensive especially in terms of the vets’ bills either side of the Atlantic.