What would you need in order to live completely self sufficient and "off the grid"? Land, Power, Resources?

There are plenty of books available, consult your local library system. Few will cover the ENTIRE range of your question. You are going to need plenty of resources, and a sizeable piece of land (About 40 acres minimum) with good drainage and an artesian well rank high on the list. (THAT'S not going to be cheep!) The skills list outweighs the tools list, you'll need to know vetrinary skills, some intense first-aid and medical skills, Ranching and farming, hunting, butchering and tanning, Logging, food preservation, and a -megaton of fibre-arts skills. Are you going to grow cotton? or linnen? use wool? Each has different particular skills. You'll need someone with electrical, electronics, carpentry, masonry, plumbing, welding, sheetmetal, blacksmithing,...well, you are getting the picture I hope. THAT's just the beginings of the skills-list. The tools and supplies list will become evident once you begin doing jobs for yourself around the enclave. This is NOT a small order project you've set up, and another, and in fact a MAJOR question is, how compatible ARE these 10 people, and how will they fare if the group has to become totally self-sufficient? The group psychology will be the thing that makes or breaks this before anything else does. Does everyone hunker-down and get with the program, or do some begin pulling-away, hoarding supplies, and withholding efforts towards the common good? That is a very likely course of events, given a group of this size. Good luck.