That topic has been discussed here:
https://bitcointalk.org/index.php?topic=418183.640And our stance is still the same.
We don't want to show you any information on our set up if we don't have to. We are getting plenty of business the way we are set up already. We do not want to violate our sales agreements with our supplier(s) and there are other issues which may put our entire operation and customers at risk if we were to fulfill these requests.
Why sell 5 year contracts on GHs that will pretty much be worthless after year 1? There's no Ghs that you can buy/sell today that would be worth anything when the difficulty is going to negate it. It seems that you're trying to take advantage of the fact that newcomers to mining aren't going to realize that and spend a lot of money up front without a solid understanding of the ROI after 1 year.
As far as privacy, you can hire an auditing firm (Ernst & Young) to validate that you actually have fixed assets and not disclose your trade secrets. This allows investors to know that you actually have a method/process and a production facility without disclosing confidential information to competitors or bad actors. Many companies do this that sell proprietary products to the government or companies seeking investments from multiple private equity firms.