Are they roosting on it at night? if so time to get the roost in.
You can leave the ramp outside it give the run the "chicken" look. I would add some tread strips to it though.
31" is fine for the roost height, looks like you have standard breeds and they will do just fine with that, i would put the nest boxes on the other side and lower than the roost and with a slanted top to prevent roosting.
Ok, as are as the brackets. They are the kind that are in the shape of an upside down "L" with a "U" shape on the end for the WOODEN rod to fit in, you can also make something very similar.
Or simply make the a "L" shape bracket out of 2x4's and screw to the wall and use a 2x4 flat side up as the roost. (probably the easy route).
You mentioned watching and relaxing with your chickens...I do it every chance I get. I have built a small patio with table and chairs right outside my coop and run and sit and watch when I can. It's better then any tv you can watch and completly stress free.