http://mangahelpers.com/m/one-piece/raws/ - there are links to the three Color Walks, the Data Books, 10th Treasures, and Grand paper Adventure at the top of the RAWs list there.
The Red, Blue, and Yellow data books, 10th Treasures, Color Walk 3, and Grand Paper Adventure were scanned by me. Color Walk 1 and Color Walk 2 were scanned by EIEN ni ANIME.
I figured I should post this here since most people don't bother to check MH's One Piece RAWs section.