I also ordered a petticoat, and all in all the order was UNDER $300!!! I got basically 3 full cosplays, half of another cosplay, two wigs for that price. It's amazing, really! I bought three of the items from a shop called Fantasy Sheep, which my friends have ordered from before so I know they'll be great.
I can review the service I'm using once I complete my process with them, but really its been great so far and my friends have done it many times. I recommend looking at using a shopping service to order from Taobao because it's great!!