I just ordered 100 SR cornish X from mt healthy, got 50 free chicks as well. $137 total. it says hatch ship date is the 18th so i have a little time to change tractor size if need be before building it. I want to do it, but im so scared about it, like what if we do it wrong somehow? We got the plans drawn up for our conduit chicken tractors... but i wanted to get opinions on how big of a space 100 meat birds need( they are not all cockerels) How long do the cornish x need heat lamps for? i assume less time than normal chicks? Thanks. Edit to add the 50 free chicks will be in a separate space from the 100 crx.