You already have the panel schedule? I'll be happy to help out, going to be cosplaying Raine again this year.
Franziska von Karma (Ace Attorney series- older and younger versions)
Lyn (Fire Emblem/Super Smash Bros. Brawl)
Raine Sage (Tales of Symphonia)
Grell Sutcliff (Kuroshitsuji, butler outfit)
Rose Bride Utena (Revolutionary Girl Utena, need new wig)
Twilight Sparkle's Gala Dress (My Little Pony: FiM)