Hi, Michael, and welcome to BYC.
I like your ideas and have moved that direction myself, working to integrate more of a holistic approach to my gardening. I don't have room for a lot of cattle, but have been rotating garden with chicken pens to good effect.
Joel's approach is a philosophy that needs to be implemented with a great deal of flexibility based on the ecosystem and economics you are in. Listen to both the land and the market around you before you take the plunge too deep. If you want to talk to someone who has made a firm commitment down this road, I would recommend Jeff Hamons of Synergistic Acres Farm (
http://www.synergisticacres.com/) who is committed to marketing heritage beef, pork, turkey, chicken, and a little bit of produce. He raises Galloways (as opposed to Dexters) and can provide a lot of information for you.
My first question to anyone new to chickens is, "What are your goals?" Australorps will be tops for egg production if that is route you" want to take with eggs being your primary protein product, but they aren't much when it comes to meat. Most customers want chicken with fat breasts and white skins in the Midwest, so a lot of folks raise broiler chickens as meat birds. Buckeye chickens are my preferred breed for true dual purpose, but even then, they have smaller breasts and larger thighs and legs than the Cornish birds sold in stores. And bright yellow skin which makes a very tasty broth. But to develop a customer base for these birds, I would have to do a lot of education to get their palates accustomed to the flavor and texture of the birds.
Most of the folks around me in Ohio that raise birds for eggs usually go with one of the popular hybrids like Golden Comets or Black Sex Links. The most popular standard bred chickens are the Australorps, Buff Orps, and Barred Plymouth Rocks. All of these are high yield birds. Since I'm not raising eggs for sale, the Buckeyes, with slightly lower yield, but better dressed carcasses serve my family very well. I also raise market turkeys since my kids show them at the fair. However, the economics of raising turkeys means I lose money on them, but cannot beat the taste.
Are you wanting to farm commercially or just as a sustainability/homesteading type of concern? Also, what is the topography and ecology like where you are? Can you successfully pasture raise livestock on what you hold?
rick