We have a ten by ten by six dog kennel that will be our run. I'm going to be setting it up and digging a trench for the hardware cloth apron while the guys play with scary saws and things to build the coop. How tall does the raccoon guard overlay at the base of the fence need to be for standard hens- 18"? 24"? How far out does the dig guard part need to be and how far down do I need to dig? I am not sure if our local store will have 48" hardware cloth or just 36", so if I can do more I will. But assuming I can't, would 18" up and 18" out be ideal? Or 12" out and 24" up? Predator-wise, i'm not positive what all is in the area, but I know we have raccoons and evil neighbor dogs. Bonus question: I was originally going to cover the run with hardware cloth but I've decided that's pointless if I don't make the whole darn thing out of it, so is rolled chain link a reasonable alternative? Bonus bonus question: what do you recommend for reinforcing the connections between the chain-link and the frame?