Like someone else has mentioned above, they never claimed it was going to be a budget build. Having someone do what they plan to do to any size or brand of engine won't be cheap. I think the idea is to show how to maximize what you are working with which in this case is a BBD fed 318.
Exactly about it not being cheap. Wrong on the second part of your statement as I love the 318 but also love using your brain to get the most out of what you have. I think most of you are missing the whole point of the build which is all the little details that add up.