For solid data you would have to wait for me to get:
1. Sample chips
2. Number of orders
than I can say it will cost 100, 150, 200...€ From plans we are getting ideas why BFL had problems but we are not sure about it. It is power... I don't think that heat is such big problem. So BFL was flying blind till they get the chips and so are we.

But as I wrote. You can buy just chips. You can send us or tell me to buy a different board an mount chips on it. This is minimal expanse of around 10€. So you really don't need to worry about boards. I would be more worried about timing... Chips are the main problem. They are 100 days away from the day we order. If we get sample chips in 30 days I'm sure we will have something. I also think that some community project will come up so we can look at them an see if we can improve the design. But if you would like solid numbers. I can get 1000 BFL boards for 30 to 40$ unassembled or 60 to 80$ assembled+ prices chips and other staff on it. But simulations are showing that components can support 2 maybe 3 chips. Our design is far from complete so we don't have idea what component we need and how much do they cost. We are not going to go BFL way and say something that we all know is a guess and can be off by a mile.

But if you are twisting my arm I can say that 16 chip design is unlikely... Too expensive or too noise cooling We are moving in a direction of modular 4 or maybe 8 chip design. Normal CPU heatsink. But we are still calculating components and calculating power usage and heat production... So we are far from knowing exact components.

Why I'm a hurrying so much. Boards were never a bottle neck. K16 boards were produced before first chips were delivered. Same will happen hire. I'm sure. Even if we fail you will have chips that you can mount on any open source board that will be produce among the first. If not there is still BFL board that we know is working. I have no problem with pride. If we fail or there is a performance benefit I will send you the best board out there at the moment. This is something that we written in a agreement among ours companies.