I have decided against the pre-fab coop kits because I don't want to replace it every year and we have predators. What I have found is a plastic 8x10 shed for sale on craigslist that I was going to buy. I was going to fully enclose them meaning bottom also. If I bury the wire on bottom, do I just put dirt on top? Also, any ideas on how to attach to the plastic shed? bolts? I assume staples will back out or pull out easily. Thanks. I am glad I have weeks to do this!