I'd echo what everyone has said about so-called 'micro' pigs - have a look at facebook, there's a page called 'The truth about mini pigs' - it makes very disturbing reading

But for a nice, friendly, small pig you can't beat Kune Kune's

(plural - one on it's own is not fair on the pig, it needs company of it's own kind) they're wonderful, friendly and really easy to keep - OUTSIDE. No pig is suitable for a house pet as they WILL destroy your walls, floors and furniture

I think the nearest person to you in Scotland who keeps them is Wilma Johnston in Falkirk - I'm sure she'd be happy to show you round and explain about them (as would I, but I'm down in Lanarkshire so not as close

) My second daughter is autistic and gets on really well with the pigs, so they are a good choice, providing you're set up for them. I would suggest a lot of thought, thinking and planning as you're looking at having them for 10+ years

There is a forum on the Kune Kune society forum too - might be worth posting something on there too.
HTH
Karen x