Cosplaying (?)

Or at least, I'm trying to do so!
It's the first time for me but as I got a friend who joined me we promised to have our costumes ready for the first days of November (Lucca comics 2007). Soooo, the point is that I have decided the character to cosplay, which is Linalee Lee (1st version) from D.Gray-man - Exorcists got such wonderful uniforms!! *O* But also Road Camelot had a great outfit so I wasn't sure about who to choose.. Linalee? Road? Kanda? or Lavi? waaaaaa!!! I was going crazy XD
Anyway as it was the first I thought better the easier ;) so: Road or Linalee? Linalee wins! Just because I had already a skirt, well, is a dress, actually, but it doesn't matter, right? I must wear a jacket on the upper half.. and this last one is my problem ç_ç
I really don't know how to do that, cause I don't have a jacket to modify so I have to make it from the start.. - OMG!! XO I guess it'll be tough for me... someone HELP ME!!! -

ps. I finally found a place to stay for the period I'll be in university!! aaah.. that's a good thing ('_^)