Here is one available from an ebay seller: https://www.ebay.co.uk/itm/Z-13A-En...138995&hash=item2ceb6dd534:g:IscAAOSwCzZc6TA4
At this price it might be a cheaper option to buy a direct plug-in PSU and remove the contents; make sure the enclosure is screwed together and not ultrasonically welded.
Try searching for a EU direct plug-in enclosure.