The kimono top, hakama (pants) and kataginu (the tan... thing. I'm not quite sure how to decribe it!) took about three days for myself and my mum to make. I did the hakama and kataginu (with some help for measuring things), while she did my top. It was my first time making a Japanese outfit, and came out wonderfully (at least I think so!)
I also have a bamboo stick that I purchased at Hobby Lobby, a carp kite from an asain gift store, straw sandals from Walmart, and large socks (they worked fairly well as tobi)
Anyway... I'd love to hear about your costumes!