This is an epic cosplay, my friend. I'm a Stormcloak soldier myself, I just haven't gotten around to making my cosplay yet. I will soon, though. I hope I can make mine as good as yours. If not, then I tried my best!
I'm not sure... I think most people make theirs. I know you can get certain things on easy like amulets and the like. No time like the present to learn though! You can check out my blog for how I made parts of the costume, if you're interested: www.canispantheracosplay.blogspot.com