Now see...I'm going to get in trouble. OT advice warning!
IME, you really don't need to make up any PVC contraptions to have space saving and go cheap....a piece of guttering with a cap of woven wire, mounted on the wall of your coop and with some support for the bottom(bricks work) is much easier. The wire keeps birds from flicking and scratching through the feed and the open face of the whole length of the feeder is an easy to fill solution.
I tried the PVC feeder and soon discarded it for a more practical and easy solution. You should have seen the work I did to make the durn thing...too much. 
We have scrap wood from our coop renovation. Never thought about the wire. That's the problem...they seem to bill it out of every feeder we've tried - even the hanging feeder. This is definitely an idea to explore in spring.
:old My Dad raised pheasants like we raise chickens. We never used heat or lights. rubber tubs make great water bowls. I use the hanging feeders and a crock pan for oyster shells and grit. I'm building a new coop and right now the chickens have a tarp on the northend of their run and a third of the top. They are doing fine. I do talk to them when I feed and gather eggs. My little Silvewrduck wings are in a small run with one end covered in hard plastic to protect them from the elements, they also are getting a new coop. I have never wormed a chicken they do fine and are healthy. I have a large golden retreiver in the yard to protect them and my goats from preditors. The goats seem to take care of any snakes that come thru their pen and the dogs take care of the rest of the problems. I live on 22 acres in the country. the reason for the lack of coops is we had a large wind storm and the damage to the coops made them dangerous. 
I have tore them down but due to health problems it's a slow go for me to rebuild. My DH and I work from daylight to dark so there is very little time to build.
