Calling all #journalism nerds: does anyone know where I can find a completed, unredacted feasibility study for an investigative piece?

I’m writing about the founding methodologies of the IRE, and received some feedback on my draft that a case study or example would help make it less abstract. The trouble is, IRE textbooks do not provide a finished example. This is true even of Paul William’s original text!

I’d like to check my work against one that actually made it to print.