I've got 11 acres total but don't see ever going over 1 acre for the garden realistically unless it's necessary. I don't really have any space to get plants started indoors, we downsized as far as the house goes and we're pretty well packed in as it is. I have a barn but I don't think that's going to work well. I may try to put up a small greenhouse down the road if its beneficial to what I'm wanting to do.
I appreciate the advice so far.
You are living there? If so put your garden near the house, it will minimize intruders. Especially if you have a dog. Also T post and hot wire are your friend. If it were me I would start with a 1/4 to 1/2 acre. Ground prep is crucial in initial stage, proper prep will save you a lot of work wedding etc later down the season. Also think about how you want to preserve it, water bath canning is a good choice for tomato, beans etc, also a dehydrator is awesome for dried tomatoes.
Are you e chickens free range of in a coop? If they are in a coop collect waste and save for the garden. Also start a compost pile for non meat food waste.
Most of all Enjoy