Collection agency info files format enhancement

Hi Expert,

Please let me know best way to enhance info files send and receive to / from collection agency. I have to add more fields in the information files.

Below events are provided by SAP for the info files

1. 1729 - Mass Activity: Information for Collection Agency
2. 5051 - Collection Agency: Add Header Data in Information File
3. 5052 - Collection Agency: Add Item Data in Information File
4. 5053 - Collection Agency: Add End Record in Information File

should I use above events to enhance my file structure or should I develop custom program to generate file on the application server directly. Please sugest best practice.

Thanks,

Gulrez