Hey, I'm not defending the DMO nor the government, I'm just stating a fairly well know fact within Defence and Industry re that particular project. To say that 24 Super Hornets cost $6.5 billion (suggesting they cost $271 million each) is ridiculous.
For projected project costs, the public DCP is a good place to start - it lays out the projected cost of each project (admittedly, within a fairly broad band), and what is included in that.
And then the DMO major projects report which is published each December-ish clearly reports on finished projects, or on projects that are under review, delayed, on the POC list etc, and what needs to be done to complete them. It may not always make for pretty reading, but it's all there.