I live in Kilmarnock and the only place that sells camping equipment is closing because the owner is retiring (P R Torbet's Fishing Tackle shop): Everything is half price, so I got all my maps there and other odd equipment. I don't know what he'd charge for postage but even Amazon is at least £5.25, inclusive of that (You might have to phone them as I don't think they do things over the internet). Shop shuts at the end of this month.