Nigel, are you looking for a US grower for a business contract or just asking if it can be done?
desertchris, it's 1680 plants/acre = 317 acres.....all planted in chiles!!!
and if $ per # of dried product gets into the conversation, sorry to say but there is no way thousands of pounds of chiles can be grown and processed in the US for the price of what it is from India.
I agree with you, but I took a different approach to the math.
First of all, I have never attempted to scale it up to this level so I am truly talking out of my rear, here.
I was thinking in terms of something easy, fast, small and prolific, like some of the cayenne varieties. My cayenne plants wouldn't know what to do with 26ft^2 per plant. (43,560ft^2 / 1680 ~ 26ft^2/plant)
Even with row planting, I would think you could easily get 10,000 cayenne plants in an acre 4.3ft^2/plant. So after harvest and drying you are looking at 1000-2000 lbs of dried flake per acre, (I still think that number is on the conservative side)
$3.17/lb to the grower? So somewhere between $3000 and $6000 per acre to the farmer. Just in those terms, it sounds pretty good, IF the farmer has a harvest machine that can effective harvest chilis. 100 acres = $300,000 - $600,000 per harvest. I am fairly sure a farmer could turn a profit on that.
I think the real problem comes from the capital involved. A farmer is going to have to retool his farm completely, on a 100 acre farm retooling might cost a million dollars. I don't know if the gear exists, though I am sure it does, there are plenty of chili farms in the world. Then there is the drying/grinding facility, inspections, etc. It would be really important to replace the human labor step practiced in India/Mexico with automation, the machinery might cost half a million dollars, but it would be a lot cheaper than have to pay 100 workers in the US. If the investments could be made, a farmer could possibly turn that into a profitable venture after a few years.