Good guide, only comment I have is there is a cover over the viewfinder that you need to remove initially, you just pull up on it and it pops off. If you look closely at the viewfinder on the camera in the pictures you will probably see that it does not have a cover around the viewfinder that your camera does. This needs to be removed before removing the back of the camera.

For me some bolt sizes were also different, i just labeled every bolt location with a piece of tape with a number written on it, and kept track of the bolts.