I really didn't want to need to feed/water the chickens too much, but at the same time only having four didn't really necessitate a massive system. I found this video for a feeder (https://youtu.be/pzW4YytXYaQ ), and then bought some sideways chicken nipples off of amazon and <~$20 later it was done. I've since gone in and made the street elbows for the feeder a little longer than he recommends, which has made them truly zero waste.
Also, a couple of good wheels from Tractor Supply (https://www.tractorsupply.com/tsc/product/titan-casters-4-in-rigid-poly…) on the one side and some handles on the other and boom, chicken tractor.
Finally, I noticed one person that had extended the rungs on the ramp out... my chickens love that and are on them almost all the time. Lastly, I put a quick 1x2 at the top of the ramp to keep the chips from spilling when I move it, but they really like roosting there, now.