Oh no, have you checked on fleabay Simon?
Seffie x
http/cgi.ebay.co.uk/15kg-live-rock_W0QQitemZ150420569270QQcmdZViewItemQQptZUK_Pet_Supplies_Fish?hash=item2305c3bcb6
What about this Simon - its a decent price, I know its too much for your tank but you could sell the rest on