[1overcosc]

$3 billion is cheap enough that the federal government should simply just pay for it. That way, instead of having to share the resulting profit with investors, the federal government can pocket all of it and spend further on more improvements.

That said, it's exactly what we've needed. To date all proposals have just been massively expensive 300km/h trains; this is small enough to be pragmatic and thus possible in our fiscal climate.