I got an S-Boy wig off of Cosplay.com Shopping in blond. Luckily, no styling was required :)
The dog tag necklace I'm currently looking for. The piercings I already had. (Except for the lip piercings). I actually had to make the lip rings out of wire and use a tiny dab of hot glue on an end of each so it would not cut the inside of my lip.
The dress shirt & pants I got at Value Village. The shoes I already had.
As a prop, I have a toy cap-gun that I got at the dollar store.