Try
http://www.theballroomshop.co.uk/
They are located in England. I got my 1st professionally made dress for $500 (which is a pretty good price for custom and some crystals). All the dresses are around $450-600. Angela can make a dress to your design, or you can pick one from her collection and she can customize it to however you want. The dress will take 2 months to come, as mine did. If you need a faster dress, look for local people. Looks good and fits well.