Cheap shugo chara costumes?

theres a animecon coming up & me and cosuin decided we are going to be shugo chara , so she is going to wear the Amu school uniform & i was hoping for amulet spade with Miki we need it for a cheap price ! no wig is needed ! perhaps for both under $100 please WE NEED IT FAST ! in 2 weeks :(