Welcome! I just finished watching a video on training chickens to use a treadle feeder as I have one as well. Now that my younger ones (7 and 9 weeks) are pretty well integrated with the older ones (13 weeks), I'm ready to move out the extra feeders and let them all eat together.
It sure sounds like you've done your research at some point as you have all bases covered for their protection. If you ever have questions, just find the forum and ask away!