Sketchfab exporter modification ?

Hi all,
The Sketchfab exporter is sending Blender files (.blend) to my Sketchfab dashboard. I would like to be able to send .dae (COLLADA) files. Is it possible to modify the exporter to have this option? Exporting the dae files and importing them in Sketchfab works already fine but I’d like to be simpler.
How much would that cost ?
Thank you.