Batch update Creo models in Windchill PDMLink

I am using Creo 2.0 M110 and Windchill PDMLink 10.2 M020.

I recently found that I have some old models in my library of thousands of models with very low accuracy which is causing problems in downstream manufacturing operations.  I want to run a batch process to update the files per the below steps, but I don't know how to approach this.  Any help would be greatly appreciated.

1. Find the Creo models (.prt files only) with low accuracy in the Windchill database.
2. Check out the files with low accuracy.
3. Open and change the accuracy to .0001 ABSOLUTE ACCURACY.
4. Save and check back in all the files.

Also, I need to run a report of all the .prt files in Windchill that have a sheet metal YFactor = .25.  In this case, I don't want these parts programmatically updated, I just need the list of parts so they can be manually reviewed.