I believe I have the retail box for Bionicle: The Game GBA and the manual as well. I have access to an industrial scanner so I can scan them for you sometime, and I believe I can dump the ROM via a modded Wii and a GCN-GBA cable. Additionally, I have all the promo CDs for the Bohrok Kal and the Rahkshi, as well as the Bohrok CD and a few others most likely.
I have a few other weird oddities, such as a version of Nivawk's instructions that's half height and stops too early on the Ultimate Dume combiner.