This is a link to the most comprehensive useful free download I have found in the past two years of online free research. I find the composting toilet interesting and love the low cost approach to solar power. There is a design for a passive solar/wood burning heater that uses rocks to radiate heat like a masonry fireplace. It could be adapted and used like the central boiler system.
A MUST READ FOR ANYONE SERIOUS ABOUT HOMESTEADING DO IT YOURSELF STYLE!