Sounds like the spreadsheet will help out a lot.
Do you know about myintuition? Streamlined version of NPC used by some schools:
You should be able to plug in numbers for a school the first time and get a result, then go back and choose a different school and it should auto fill your numbers the next time through. Might save you a bit of time for schools that participate. Obviously it lacks the specificity of the long form NPCs but it can give you a general idea.
I know you’re a veteran at this but it’s relatively new, thought it worth mentioning.