> A great use of AI in this situation would be to automate the collection and checking of data. Search all of the data sources and aggregate links to them in an easy place. Use AI to search the data sources again and compare against the spreadsheet, flagging any numbers that appear to disagree.

Why would you need ai for that though? Pull your sources. Run a diff. Straight to the known truth without the chatgpt subscription. In fact by that point you don’t even need the diff if you pulled from the sources. Just drop into the spreadsheet at that point.