Bal Togs doesn't sell directly to buyers. They sell to other dancewear supplier companies. I'd recommend buying from www.nydancewear.com
The "Special cut to order bodywear" is the section to pick out a specific shape (there's lots) and the specific color you're looking for in nylon/lycra (shiny) or cotton/lycra (matte). Bal Togs makes lots of colors, but depending on the dancewear you buy, the price goes up, but it's well worth the price.
NYDancewear ships pretty fast. I had purchased a cut to order suit (usually they submit it to Bal Togs, where it's sewn and then sent out) expecting it to be 3-4 weeks before I would get it, as their site says, but I ended up getting it in less than a week (my guess is the color and cut I requested was already made before my order).