Obviously the suit and the wig are easy to do:
White Suit(overstock.com) ~$85.49:
Actually a White 3 piece suit apparently but it is 2 button which is what
you are looking for. Overstock.com is great for anything.
Grey Collar Shirt (Also overstock) ~$25.49:
Black Tie (Overstock is neat for pictures) ~18.99:
Grey Silver Wig (you may need to trim this up but cosworx is having sale!) ~35.00:
http://cosworx.com/product.php?productid=26257&cat=2471&page=1This wig in Silver would be perfect, just need some styling.
Your hardest thing to find/buy would be the trench... it is WAAAY longer than most
white trench coats on the market today, you may either have to find something similar
and add onto it, custom order it from a cosplay website or find a close enough model and
just let that fly. You can find relatively long coats, but they wont be quiet like Muraki's,
the problem being those fly away clasps in perwinkle he doesn't use.
~Allykat