WP All Import and importing Images

I have the plugin working almost perfectly with WP All Import. Has anyone reached out to them about writing a plugin hook for this project? Here is the issue. My images are already sitting in a GCS bucket. When importing with WP-all import, it doesn;t discover the images. My import XML file has the correct image URLs however, from the stateless settings. It appears that WP ALL import is looking for the images in the original WP uploads directory, not finding the image, and thus downloading the image from GCS to attach to the post. Lastly, it is saving the image to the post, and re-uploading the image to the cloud, thus overwriting it. Any idea how to make these too excellent plugins play together nicely?

At first look, it seems that if WP-ALL-Import recognized that the media settings have changed due to stateless, then it would find the original images in the GCS library and just attach the existing GCS image to the post.