Insom...Call sideshow they may have a head for you. I called not to long ago...(last month) I have a reg Cap who's wings had gotten damaged and asked if they had any parts to sell. They asked if it was an EX..because they would have replaced my head, as they have some laying around..
Also the Magnets $uck on SS pieces..My Wolvie EX is fine But EX head on Thing is Horrible, no pull at all...
Here is what I did on my Ex's..Go and Get Velcro tape..hot glue gun around outer part of magnets..(wait for it to dry) Then a piece of Velcro tape around both magnets (A pain but worth it) and Bam..they don't fall and still have pull of magnet..Plus velcro so you can still change heads