I'd guess that a series of releases (10% of shares each day for two weeks), each at the previous day's average price, as traded among members of the market, wou

I'd guess that a series of releases (10% of shares each day for two weeks), each at the previous day's average price, as traded among members of the market, would do an okay job of discovering market price. Alternatively, the entire block of shares offered at a slowly-lowering asking price might do it, too. I don't doubt that these things have been thought about a lot...