since i now have time off i figured nows a good time to do this. 70s kitchen, grease on ceiling etc. lotta cracks and peeling paint. i'm assuming the order of doing things is get off the wallpaper and see whats under and go from there. thankfully its only about one full wall about 12 feet long and then things like 1 ft border above half the kitchen and about another 5 ft with a window and 5 feet of kitchen hall 1st issue. i just removed the plastic trim ring from the AC and its ugly . i had to install this in 105 heat in july and had to actually knock 2 inches of cinder block out to make it fit. the wall is some kind of panel as it moves. if you have to wait for me to peel the paper back i understand but wondering if any suggestions can be made at this point. honestly wondering if i can just get a bigger trim ring lol

Over the past several years I've noticed some wall deterioration at the corners of a window. While originally you could only see some warped paint, it's gotten worse over the years. I recently scraped off enough of the outside to see that there's underlying water damage, and I even noticed small holes where light was coming through from the outside. I tried inserting some wires/sticks through the holes to see exactly where they were leading outside, as shown in the pictures. I'm wondering what the best way to seal the small holes in the wall would be (Inject some kind of putty/sealant from the inside? If so, what kind? Or is there a better recommendation?) and what the best course of action to plaster over the wall afterward would be. (I was thinking of using a drywall repair patch with joint compound). Thanks in advance for any advice