For sale, Martin Audio DLS801 L18P300 1000W AES 18" Driver.  Fully working, but as can be seen from the photos, some damage to cloth surround.
Can be repaired with following kit or similar :-
 http://www.ebay.co.uk/itm/18-Cloth-Surround-Repair-Kit-to-suit-RCF-Speakers-L18-P300-SC-RCF-L18-P300/361466778579?hash=item54291953d3:g:6TcAAOSwa-dWlMK9

I have 2 of these drivers for sale.