Don't disount the labor involved with tending your hops through the season. The harvest can be tough. A guy in the club has about 1/2 acre planted with a partner, and they need the help of the brew crew from theh brewrey that buys them to harvest the hops that go directly into a beer.
THIS! People seem to think that after you plant them, they grow by themselves and that's all you have to do. The harvesting, and especially the drying and packaging, are where all the work is. This is not intended to discourage the OP, but just to make sure he thinks his plan through.