Just remember that a lower quantity will result in a higher price. Currently there are only about 300-350 requests for tuners. 1000 is a far way from that.
From what the empeg/sonicblue guys have said, the tuners will cost more than the original cost which I think was US$79 or US$99. The way they were talking was around US$150 I'm guessing. And that was for a 1000 quantity. I'd probably budget around US$200 to be safe. It's still better than US$300-400 being extorted on ebay

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I am currently investigating the possibility of an external group buy of either completed or kit form tuners.
The real killer on the price will the price of the tuner module I believe.