I live in the PNW and our winters are fairly mild with 3 weeks or so of truly nasty weather most years. I do not want to spend a ton on a coop. In fact i would like to try to build it for 100$ or less. So what can/should i use for the nesting box area/inside coop area. Will buckets work as nesting boxes? I have some large 3in radius limbs from my fir trees.....can i use those without for the frame? Roofing? so i need shingles or will plastic work? I have looked and looked and looked again for free/natural material built coops and am coming up with very little. any direction would be great. I have 5chicks and will bring in 1-3 more this week. they are 3ish weeks old. How much time do i have before they need the coop? I am very visual and hearing or reading is not the same as seeing pictures. thanks in advance