I think it'd be easy to add ventilation. Leave a door or two open and screen with hardware cloth. Add windows, maybe. At that size, you could add a varn fan. Really, it'd be a barn, basically. I'd be all over that! So many possibilities! What fun!Mine wanted a 3 car garage too! But then he never used it?! He's a little salty about the chickens using it, but honestly... What else is happening there? Spider breeding?