Can you set up a report (download to Excel or csv file) with your loans with Call Report classification? That will be an immense help to you to gather your data. For example, your small business loans will come from loans that are coded as non-farm non-residential real estate (owner occupied and non-owner occupied) that are on lines 1e1 and 1e2 of Schedule RC-C1 and the commercial and industrial loans that are on line 4a of the same schedule. That will identify the loans originated in the time period you are working on. You will need addresses, geocoding if in your system, and origination amounts; for lines (revolving and draw) you will need the note amount not the balance.
You may need some manual processes to identify the necessary information for refinances and renewals and modifications.