You want to make a coop for night time safety out of the kennel?
1. get 100' of 3' hardware cloth. If you have weasels, snakes, or raccoons get no larger than 1/2" x 1/2". Attach the hardware cloth 2' up the sides and 1' buried. Attach it to the kennel walls very securely. This will keep weasels and snakes from getting in and keep raccoon paws out as well.
2. I am assuming you live in a warm climate.
3. The gap around the door is too large and will need a strip of hardware cloth as well.
4. You are going to need something to cover one end and 1/2 of 2 sides, which will make 1/2 of the kennel into a 3 sided shed. A water proof tarp works well over the wire for a roof as long as you elevate one end or make it a peaked roof to allow water to drain off. You will want a roost in the shed part, as high as you can, allowing head room. I would also make a roost in the open part. You can make nests out of wood or use 5 gallon buckets, either way, attach them to the back of the shed. If you want the whole kennel enclosed, you can use marine plywood,plexiglass ( its really expensive) or see what you can get through craigslist or your habitat for humanity store. How tight you need to make it depends on the temperatures where you live. Once you get the hardware cloth on, its safe to use and you can modify as you come across ideas. Good luck