St Trinians Fancy Dress

I'm going to a costume party with my friend and we want to go as the girls of St Trinian ... the problem is we can not find suitable clothing buy [quite cheaply] to get the look.
Does anyone have links / know where we can find appropriate clothing?
thankss
X

It will cost £ 20 Just go to a school store and the supplier and get a gymslip done in a mini gymslip, white blouse to school or Asda Primark, black stockings, garter and a tie. You're there.

Heres a website I used Fancy Dress:
http://www.joke.co.uk/prodpagesearch.asp ...

I would go into a second-hand shop or charity shop, buy a short skirt, white shirt, tie and socks Mans: o)