I'm about 65% complete with Part 3; I've got about 20K words complete with somewhere around 10K remaining. I won't finish it this weekend, but probably by the end of next weekend, it will be done.
I'm midway through the four chapter climax where everyone's story arc peaks before settling down for the end. The back to back climactic chapters are hard to for me to do. I almost need a quiet chapter for myself in between them to break from writing the action scenes.
I think the end of Part 3 will be pretty exciting to read; so many things are coming to some sort of a conclusion at once - very exciting.