I totally understand how hard these are to find.
It took me awhile and on my third set of Seacons to get these from an AU seller:
http://heroicdecepticon.blogspot.com...ry-part-1.html
http://heroicdecepticon.blogspot.com...ry-part-2.html
PS: I sold one set of Seacons complete with all Tech Specs to Kup a year or so back. Not sure if Kup is the tech spec kind of guy, but you might drop him a line if you still need Seacon tech specs.