I did it about twentyfive years ago. Had breeders and set 100 eggs a week. Got about 60-70% successful hatch with incubator that held three hundred eggs, and a hatcher of same capacity. In one spring and summer I had enough birds to eat me out of house and home. It was a lot of work, feeding, watering , heating and lights and acquiring equipment plus feed, a flight pen, etc.,etc., etc. Are you getting the picture? I practically gave away about 500 birds just to get rid of them! Unless you make it a business, and work it hard, you'd be money ahead to build a small flight pen and buy a quantity of birds for training a dog or two. I was like the farmer thaty won the lotto and when asked what he was going to do with the 5 million$ he replied, "Well, I been farmin' all my life, and I recon I just keep on 'til it's all gone! I have had to put new wire on my flight pen but I still use it and keep a few just to train with. I really think if you have a source anywhere close, that'd be the way to go. My $0.02 and worth what you paid for it. Johnny houses might also be good for you. Serious dog trainers usually have a pigeon coop as well.