Bulk Export of Incidents via Print Preview using SOAP

Summary

Bulk Export of Incidents via Print Preview using SOAP

Content

I recently received a request from a client for the bulk exporting of a large volume of incidents in a readable format. Looking at the 'Incident Print' message template, I can see that a SOAP API call for 'message_render' is being made when pressing the 'Print' button on incidents - however looking in the WSDL on our site I can see that this call isn't exposed to us for use elsewhere.

Does anyone know of any exposed functionality that would allow for the bulk exporting of incidents in a user-friendly format? I know I could pull back the incident fields & iterate over the threads and export via a few of the API's, but that is rather involved for the volumes we need to export in the given time frame.