[Where to buy replacement helmet vocoder?]

I am disappointed that i won't be able to join in on all the 501st fun, but am grateful to have the community as a resource.  Nice to know the manufacturer of my suit.  I'm also thrilled to have a life-size stormtrooper standing next to my television. Thanks for the help.  This story has a happy ending.  My brother-in-law will be able to 3-D print the needed parts at his school.

[Where to buy replacement helmet vocoder?]

Thanks for the info gentlemen.  I've reached out to each of Jim Tripon and SDS for help.  I purchased this suit on eBay in April 2005.  It's been in a box, unassembled (other than the helmet), for the last fourteen years.  Finally put it together.  

[Where to buy replacement helmet vocoder?]

Sorry if I'm posting in the wrong area.  My helmet has the vocoder as a separate piece.  It is not molded into the faceplate.  It is missing and I cannot find a replacement.  Could someone point me in the right direction?