Template vor bookcore with InDesign and/or Illustrator

Hey, thank you in advance for your help!

I need a template for making my own book cores in adobe inDesign/Illustrator. Please note that I have no problems with designing the covers. I do have a template from saxopring, however, it is only usable for three different sized books. My question is if there was any list or calculator in the web or in adobe for evaluating/calculating the right size for like 10 or 12 differently sized books?

Sincerely

Felix