Well...a bit optimistic.
First, full yields are possible as I mentioned. We have found that it really varies by variety and by location. The right type in the right location will easily give you 1,000 lb.
Second, one assumption you are off on is that everything will be ready to harvest at the same time. Depending on what you plant, how you prune, your climate...basically we start harvesting cascade or other varieties in late August and may not be ready to harvest the nugget until October. Your harvest window per variety is really only 10 days but each variety will have their window at different times.
Next, harvest time changes drastically with each variety. We call our harvestor the "3060" because it takes between 30 and 60 seconds per bine, for normal varieties. One problem is that many of the heirloom types, like Northern Brewer, grow really well in our valley but take longer than 60 seconds to pick. Others like pearle jump off the bine as soon as they see the picker. So plan on at least doubling you harvest time. If you are looking at a used Wolf or similar, plan on some down time for equipment repair.
$1/lb for pelletizing...I guess that is possible but that probably wouldn't include packaging, testing, etc. Figure more around $2/lb or more, assuming you can find a place. The big guys in the PNW won't touch anything less than several thousand pounds per variety. Basically, there is some loss from charging the die. If you don't have sufficient quantity, you end up charging the die and not getting a single pellet out. We've got a much smaller die and have developed methods to push the pellets out but we are still looking at a few pounds of waste.
Also include in your model a $ value for your time. Once the trellis is established and rhizomes in the ground, figure 20 hours/week/acre labor for the first two years. This is mostly weeding but also spotting for pests/disease, adjusting irrigation system, training plants, etc. Yes, your time is "free" but realize you could spend that time delivering pizza or something else that would pay you.
I'm not trying to chase you away from this. By all means, the more the merrier. What you are going to find is you'll need to get prices at least $12/pound or better. I know some that have to demand $25.lb or more. If you are trying to play the spot market and meet the lowest cost price, you will get eaten alive. That's akin to opening a dime store right next to a Walmart. People may come in once to see what you have, buy something "local" but in the end the low price wins out. What stores make it near Walmarts? Little niche shops that offer something that Walmart doesn't. That's what you need to have. A local, sustainable crop that has a higher quality than what is offered from the big boys. Trust me, most brewers realize their customers are all local so they want to support local. But to quote one of our brewers, "...I don't care if its grown in my backyard. If its S**T, I won't brew with it."