This is my all time favorite thread, it's just not as active as some.
https://www.backyardchickens.com/threads/cubalaya-thread-for-sharing-pics-and-discussing-our-birds.352331/
How far is the top netting going down the sides? I assumed that the top netting is going down the sides 4 feet to meet the 2' netting coming from the ground up. If it's only going to be a top cover, then your outside to outside run measurement can be 24'x24'.
If it's nylon or poly netting it's...
25'x25' minus 4' per side. For instance on the east/west sides the total will be 4' x 2 = 8', 25' minus 8' = 17'.
To make it easier to figure the numbers and to allow a bit extra on the netting the run should be 16'x16' outside measurement if I'm comprehending it correctly.
How about this?
https://www.animaltrapsandsupplies.com/products/victor-tin-cat-mouse-trap-with-window-m308.html
We have the one without the window on top. We are satisfied with it.