Ayumi Hamasaki Sekai - Question about Colours TA version

(Sorry if this isn't the right place to ask this)

I was wondering if anyone could help me out, in your experience, is it easy to find the CD's for the TA editions sold separately on 2nd hand Japanese sites? I didn't pay much attention to Colours when it released so i'm not sure what it's like, still dying for those sealed also but didn't want to pay god knows how much extra for a damn candle

Because i've already ordered the 3 normal versions but really want the 2 TA CD's as well which obviously are bought as a bundle with the DVD in the store, but if I could i'd rather save money and get the CD separately if there was a slim chance of it appearing on Yahoo Auctions sealed, not a big lover of DVD's.