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.
I haven't forgotten that. Hops are very labor intensive (on a small scale). In previous years, my brewer friend has rounded up members of our club to harvest for/with him in exchange for a couple pounds to take home with them and beer & lunch on harvest day.
If he is makeing a harvest / fresh hop ale from my understanding your not drying the hops, your picking and brewing. You might cut the bine at the bottom a day or 2 before to make bine and leaves and cones dry alittle might make picking easier.
I understand that, but if I'm going to do this, I want to recoup my investment quicker than hops for 1 or 2 harvest ales a year at a brewpub. At rate of 4lb/bbl, that is 14 lbs hops for a 3.5bbl system - 70lbs of fresh hops. I harvested more than 10lbs of of 2 plants, so I would need a minimum of 14 plants, more for safety sake. 4 rows of 10 plant each is going to take up less than a tenth of an acre, but going to yield more than a metric crapton than he can use in a couple batches a year.
So I have to figure out how to dry and store on a larger scale, or give up the idea.