So I've done some shopping around, and found a local lumberyard that sells scrap 2x3's for $10 a truckload. So now onto my questions.... Could I use 2x3's instead of 2x4's for "legs" of the coop and framing the run? I haven't had any luck finding pallets or plywood, so I'm thinking if 2x3's will be ok, I can buy plywood new. Second, I have an old door we took off our house than in thinking I'll use for the coop door. Will this work? Also, what's an ideal height for a coop? I'm wanting to do a 4x8 foot print, but I don't want the coop to be 8ft tall. Would a 4ft overall height be ok? Third, what basic tools will I need to build a coop? I know a drill is a must, screw driver & hammer I would guess. What else do I need?