I've lost a HDD and an SSD since then, so I definitely don't have those any more, sadly.
The most extensive one I made was RoI calculations for manufactories for every single province I had, taking into account both production income and trade income, and the production income I'd get from any missing production efficiency buildings.
Beyond that, most sessions I had spreadsheets detailing army quality and size of all relevant nations, to figure out what our chances were. Things looked dicey from time to time.
I've managed to find one screenshot of one of the last incarnations of that:
View attachment 377093