On the bottom right side of the template, there is a 1 1/4" slot. The height/depth is 1/2" from the bottom edge. Unfortunately, due to some black paint over-spray, that dimension can't be seen.
I'm hoping there won't have to be anymore "revisions", but if there need be, just give a holler
I am a little anal so I had to make it match perfectly but Bob's templates were pretty spot on. The only thing I added was a little tail to the rear inside part of the left template. There was a 3 1/2 measuring from the back by 3/4" little bump so it would fit perfectly
You can see where I added the the extra on my template. It's the orange piece at the top right.