As far as I am aware, full OST releases for the Animal Crossing series of games do not exist. If you could look into uploading the OST to your site, I would be more than grateful.
You're correct. There are no complete OSTs for each of the Animal Crossing titles. The only official releases I found are compilations such as: Animal Crossing - Your Favourite Songs(we already have uploaded), Animal Crossing: City Folk ~Concert in the Forest~(is available from cdJapan.co.jp, play-asia.com and yesasia.com) and the short Animal Crossing Sound CD: Keke Choice! Mix from 2005 which only contains 6-tracks(and is virtually impossible to find).
We'll add the Animal Crossing games to our list of future uploads.