Please help me locate a Disney Sharpay dress

[FayKnights]

My best pals's little girl desperately wants this dress for Christmas, I'll try and link www.toysrus.com/product/index.jsp?productId=11915718,
I think it's worked! They have sold out in the Disney Store locally (SE London) and online and any on EBay seem to be for 11-12 year olds, we need one to fit a 6 year old. My friend managed to source one from the US but it's arrived and is basically a shite rip-off.
Any help, suggestions gratefully received or if anyone sees one in their local Disney and could let me know that would be fantastic.

www.amazon.com/Sharpays-Fabulous-Adventure-Dress-Costume/dp/B004UUDDSM

oops, it posted when I hit return was going to look for some more.

www.buycostumes.com/Sharpays-Fabulous-Adventure-Sharpays-Pink-Dress-Child-Costume/800426/ProductDetail.aspx
They do seem to be from the US, but they do make a 7-8 (which will probably be best for a 6 yr old, I think a 4-6 would be too small) so I guess it depends how badly she wants it...
I'm having the same problem with a green power ranger suit just now, they come from the US and cost a sodding fortune once postage is added :(

Disney store website have them for £25.

Thanks for all of your help ladies, I cannot believe they now have them on the Disney website, we've been checking compulsively. Good news though I popped into our local branch and they had a couple in the stock room that had been randomly delivered, so all is well!
Pombear where do they normally stock the Power Ranger suit? I'm in Bromley so can keep my eyes pealed here if that's helps?