I've been in your position before, but if I were you I'd just try to find a non-medicated high protein starter feed to start with so your keets at least grow and develop at the proper rate. Try to keep your brooder as dry and clean as possible, and disinfect the waterer and feeder daily. And be sure to keep the keets away from having any contact with other poultry until they are 6-8 wks old if you continue to raise them on non medicated feed the entire time. I'd still continue to look for an Amprolium medicated game bird, pheasant or turkey starter in the meantime, you may be able to order some online, tho it will cost quite a bit to have it shipped. Other's have used Amprolium in the waterer, but it's very easy to overdose the keets, so use extreme caution if you go that route and mix up a new batch daily.