Wow, that was hard. but I did it and it worked. however. a couple of things. two of the mounting holes in the ifixit battery do not line up with the holes in the case - not a big deal, as the adhesive does most of the holding. And, two elongated dump-bell-shaped washers/bushings fell out somewhere when taking the motherboard out. I just found them lying in the case. I have no idea where they go (i can send an image of them).. like i said, it appears to work without them -- for now.
