Sorry, re-reading my post it was kinda misleading. What I meant was that you can't just guess what your printing cost was going to be. You should always find out what your actual cost is and go from there.
"It's never too late to be who you might have been." - George Eliot
I found this forum by accident and thought I would join up. I've been in Design/Prepress/Printing for 24 years. Wish I had something like this forum throughout my career.
Always get your prices that include Everything....Including Printing, Proofs, Overs, Sales Tax (If Applicable) Shipping, Delivery. Be as specific as you can with Bindery, Folding, stitching, Shrikwrapping, etc. Ask what Pre-Press charges may apply to your specific program. Some Printers may not be able to accept your Scrapbook Pro Files without charging to fix them. Ask for the Pre-Press rate just in case you want the printer to make minor changes. Make sure you have a quote in writing.
There are 3 types of people....Those who make things happen......Those who watch things happen.....and those who wonder what happened.
I'm not sure why you need a template. Just get a sheet of paper, cut it to the size you want, fold it up the way you want it, measure where the folds are, then reproduce those measurements in InDesig...