Have a look at the TrueSight Operations Management 10.1/10.5/10.7 Generic extractor ETL.
It makes API calls to the Presentation Server and extracts virtually any KM data for which you provided a mapping in the platform definition JSON file.
Hope this helps,
Thanks for the clarification Steffen,
So..... if we had the SQL or IIS KMs deployed, and a JSON definition file was created for the metrics we wanted, whichever magic is required for that, we would be able to use the Generic extractor?