According the the official K2K Facebook fanpage, the website will be live in 4 days.  By my count that puts the date at Wednesday 19th October 2011.
Carnival Costume prices are as follows: Females including frontlines : TT $3,600- TT $5,700 (approx US$560 - US$900) Males: TT$2500 - TT$4300 (approx US$390 - US$670)

For more information: K2K Alliance and Partner official facebook fanpage