Well I get my honey from here.
The down side, is that you're at the "wrong" end of the country, so it would need shipping.
Last time I went up there for some, I just got a bucket of the "Blossom" honey which is cheapest by far. I asked the bloke about raw honey, but he said about having to pack some specially. Apparently, the nearest to raw that they do regularly, is the "English" honey, which is harvested from (mainly) central Sussex, but it's cold filtered so none of the aromatics etc would be lost - the equivalent you might see at a US site, would be "Wild Flower".
Your best bet for raw honey, would be to track down the nearest branch of the BBKA, and talk to some of them. They might still have some raw that's waiting to be processed, or know someone who has.
p.s. Oh and don't forget, it's hard to define "quality" honey. Quality doesn't necessarily mean varietal honey. There are many different types, the majority of which aren't available in the UK, what there is, can be a bugger to find, unless you want something like 2 tonnes as a minimum purchase. Unfortunately, the "honey nazis" push the price up.....