In your introductory post you say that you want to get started without spending a lot of money. Buying an incubator probably isn't the best move if that's still your goal. You'll have enough of a learning curve if you get day or week old chicks and brood them, plus it'll cost you money to buy a brooder, a heat lamp, a grinder for the food, feeders and waterers, thermometers, bedding, hardware cloth and non-slip surfacing, and anything else you'll need.
My original suggestion still stands: buy a few hens, enough to put in 1 or two cages, take care of them and see if you like it. Also see if you have any allergic responses to the meat and eggs that YOU raise before jumping in with both feet. Also, and I mean this in the kindest way, please make use of the search function. You'll be able to find the answers to most of your questions in existing threads. It'll save you so much time because you can read entire threads concerning the questions you have, without waiting for people to post.
Good luck.