Well, can only echo what others have said, it is possible, it is a lot of hard work. We have three acres, and run a market garden and have chickens grow plants/flowers etc, and plan to set up a box scheme next year, as we see this as the only way to expand as a business, our weekly market stall has I feel come to an impasse. We are incredibly lucky in that we inherited both our land and flat, so have no huge expenditure in that reguard, however if we did we would have struggled in the early days, and even now things would be tight. Consider time and labour saving machinary such as a tractor, we've come to the realisation that it is a vital bit of kit, polytunnels are a must, as well as greenhouses to bring the seedlings on, and plan plan plan your season ahead!