I got around to pulling insulation and drywall out yesterday. It went pretty well, and I found a mouse nest and droppings. I suspect it was the same mouse that our cat fished out and I trapped last year
I drilled a hole into the corner that I thought faced the basement...and saw daylight. I forgot that the corner of the house extends out about 4 feet from the original foundation. With this said, I will likely start a new thread about how to properly frame out an access door / header through the wall (like the one in the picture).
I still have some work to do, but when I'm done, the walls will all be insulated and drywalled and the floor will be exposed with no insulation or drywall. I ripped the paper face off all the insulation and added it to the attic.