sorry kris i dont, i got a puncture a few months ago and did some ringing around, my brother works at a garge and even he couldnt get me one for less than 100 pound, dave sheldon in mcr had one in stock but due to demand they were asking for 115 quid, they said at the moment there wernt many in the country and that they are normally cheaper.
costco is a good bet if you know someone with a card but i think they often need a few weeks notice to get some in unless your really lucky and they have a few in stock, to be honest i went for a pirelli p zero nero to replace mine, total cost 50 quid (staff discount through brother) and im happy with it.