Welcome to BYC! I have 3 small coops, but none I have to get on my hands and knees to clean. That being said, we are in the process of designing a larger walk in coop, and because of recent bald eagle attacks we will attach a completely closed run as well. They will still have access to the larger run during the day when predator activity is not high. I'm only 4 years into this adventure, but I find no matter how big you make it, you'll want it bigger later. And no matter how safe you make it, you'll want it safer later.