If you don't get a response about the quilts sizes, here is another option.
Take 4 of the cut pieces and sew them together to determine sample size. It looks like you would have a piece approx 7x7 after they are stitched together.
A row that is 42 inches wide will need 24 cut templates. Then you can add the borders or not.
What size quilt do you want to make?
What are you planning for the borders?
The tutorial shows using charm squares. You could plan according to them but there will some waste to account for in this method. Such a puzzle.
Hope you get the answers you need for your template.