MM,
Would be worth considering a course and/or a book.
That way you would get to see first hand both the animals, and learn how to look after them and contain them, what they need, and how to spot when they are not at their best and what to do about it. You would also learn about the regulations, abattoirs, butchers and what meat you get from your pig.
Our course covers all that you would need to know, and you would not only see our two beautiful tamworths, but large black, large white, Middlewhite, Berkshire, Gloucester Old Spot, Oxford Sandy & Black, and our herd of British Saddlebacks.
We have had people from all over the UK, and course attendees range from people wanting to keep a couple of pigs to the couple who have set up in Japan breeding Berkshires !
Sudanpan who posts on this site has been on this course and I'm sure would provide a reference if you Pm's her!
Good luck !