Performance Sails is making all Nacra sails now but I would have to say that they probably don't make many 5.2 sails. EP would be about it.

As far as sail area goes, sailboatdata.com is usually pretty accurate but they only list a total sail area of 220 ft^2.
http://sailboatdata.com/viewrecord.asp?class_id=4176

I dug through my old photos and it's probably good to archive them...
https://www.flickr.com/photos/teamseacats/albums/72157668626370955