From the picture.. I'd be careful about him beign able to climb out.. hard to tell. But they can be great climbers.. Make the walls tall enough and block the corners. Also, Id worry about predators.. Are you going to cover it? day and night. racoons, possums, skunks, ravens etc.. all might come pick on your little guy if not protected.
Welcome!! and plan BIG for the future!
Welcome!! and plan BIG for the future!