To answer your question Nifty-Chicken, the reducer fits the chick feeder perfectly. I only needed metal straps to attached the feeder to the mobile run. I have moved the run with a four wheeler and by hand and it works great. Thanks for your interest in the feeder. It means alot.
Check out my home-made feeder on my page. I got the idea from Nifty-Chicken's Frankenfeeder (at least that is what he calls it). I only have 4 chickens and wanted to re-use their mason jar feeder.