Converting a shed is a wonderful idea. You also might want to look on Craig's List to see if you can buy a used shed or coop for your conversion. But, don't totally discount the idea of building your own. It's really not as difficult as one might think. I'm a 61 y.o. biddy, and love a building project. Check out this book.
https://www.barnesandnoble.com/p/sh...YOBFUjOjHHKUhZrZvq-5PMG-0_KdkglcaAmdsEALw_wcB
It makes the planning and building look very easy and straight forward. If you have the basic power tools, and can use them, you can build a coop!
https://www.barnesandnoble.com/p/sh...YOBFUjOjHHKUhZrZvq-5PMG-0_KdkglcaAmdsEALw_wcB
It makes the planning and building look very easy and straight forward. If you have the basic power tools, and can use them, you can build a coop!