You wouldn't have to worry about plot, character development, formatting, or grammar, except within Scottish characters' dialogue, perhaps. You'd merely read through and see if any Scotland-related mistakes jump out at you. Also, I would want this read-through done by the end of July, ideally. Short notice, I know--apologies.
In return I'd send you paperbacks of both my existing published novels--The Ghost Downstairs and Summer Term (though that one doesn't come out till Aug. 27, so you'd have to wait a bit)--and the ebook of this one, What Scotland Taught Me, once it's all polished up pretty. I'll happily send the paperback of this one too if it ever goes into a print edition.
The novel is about 100,000 words long (eek!), genre is teen lit crossing over into women's fiction, and mood is realistic and somewhat romantic-comedic. Feel free to advertise among your Scottish friends. I may take on more than one such reader to cover my bases, if I get more than one taker.