Hi! I'm hoping some of the eggsperts (lol!) or simply those with more experience than myself can help me... I'm a novice chicken keeper with 3 leghorn pullets. They have been 100% free-range but the poop everywhere is becoming a drag. For the time I spend sweeping & hosing the back porch, the chicks may as well be in a run which gets raked every second day. SO - being a mum of two small children I simply bought their coop on eBay and will be ordering the complimentary run extension soon. (I have taken measures to preserve & strengthen the flimsy fir wood as much as possible.) My plan is this - use treated pine poles to raise the coop/run about 5" off the ground. Use scrap wood to box in the 5" gap at the bottom, lay down galvanized mesh on the grass to discourage predators, then 2" of gravel and then 3" of river sand. The coop & run are roofed. Oh, and I also plan to dig & install a French drain under the whole setup before I do anything else. Am I missing anything? Would the coop/run have better drainage if I simply built a floor out of plywood & put the whole thing on stilts? Is that enough sand/gravel? The coop/run will be situated on the high side of a sloping backyard.. Thanks in advance!