DH and I built our coop (actually refurb'd an old dog house). It has a front door that opens to a little ramp, and the roof opens for cleaning and gathering eggs (I know not ideal to approach from the top, but funds are limited). It will sit on four cinder blocks. My question is about the run. We plant to use hardware cloth for top, bottom, and sides (please comment if you have other suggestions). Do we make the run just high enough for the girls... about 3', or do we make it tall enough for a person to go in with them? Do we need a gate for us to get in, or is it possible to rely on accessing the chickens through their coop if we need to? Also, we want to make a little portable run as well, that we can move around the yard (urban, two small kids to true free-ranging won't be safe for the feathered ladies). Does that need a top as well, and what would the recommended side height be?