I could convert it in Blender for you, but I cannot guarantee it will work since Blender can be picky with some meshes. Just upload the textures, the .mtl, and the .obj to Mediafire in a .zip/.rar and link it here. ^^
I just had time to do this today. I imported it and tried to add the textures, however they wouldn't work correctly. My apologies; maybe someone will know how to apply them correctly? I wish you luck!