[Taylor]

I personally wouldn't want a pre-kickoff material list. Most years, we don't build according to Hoyle (in 2013 we built a quarter pyramid and shot at masking tape goals; 2016 we didn't even attempt the sally port or portcullis). If we had purchased the full list, we would have been out more money and more space.
We have also used spare scrap to make some field elements; unless the shopping list also included cut lengths (which it wouldn't), we wouldn't buy early anyway.

I do agree with your assertion that it would be nice to have nesting patterns and/or purchasing guides released with the drawings.