I'm not the author but tools I've purchased in the past are usually $3-8k for most smaller parts and $15-25k for larger or more complex parts from a lower cost/

I'm not the author but tools I've purchased in the past are usually $3-8k for most smaller parts and $15-25k for larger or more complex parts from a lower cost/overseas place and lower volume tools and much more from a US or European shop for a high volume steel tool. Parts are then a few bucks a part or less, depending on size and particular material.