Some more reading for would be investors. Read this:
http://au.sys-con.com/read/209227.htm
and this one that builds on it:
http://weblog.infoworld.com/openresource/archives/2006/04/investing_in_op.html

I think the above material and earlier posts answer the two questions
that were put forward in this list:
- what is the price range for a percentage shareholding?
- what would the money be used for?