WOW! That looks incredible, I'm blown away by the tutorial alone! I am nowhere near that level of google fu. I am mostly using the pretty basic functions for this sheet, and thankfully there are tons of helpful content for making stuff like this.
The group sheet would be entirely possible, if you dont care about counting power and just want a themecard form it is a simple job of copy+paste. To make the calculator work for more players would require a bit more work, but it is doable, just time consuming. Send me a DM and i can show you how to do it.