Large Scale Google Drive Transfer

Google Drive — Copy a Large Shared Folder

I need help copying a large folder from a Google Drive that is owned by a third party to my own Google Drive.

I have access to the folder as a viewer, but I am not the owner or administrator of the source Drive.

The folder is already well organized, so I do not want any reorganization. I simply need to create a copy of the available content in my own Google Drive.

What I need:

I need to copy as much of the folder as Google Drive technically allows with my current access, including:

All accessible folders and subfolders
All accessible files
The existing folder structure
The existing file and folder names
PDFs, photos, videos and other uploaded files
Google Docs, Sheets, Slides and other Google Workspace files, where copying is permitted

The destination should reproduce the same folder structure as the original as closely as possible.

Important
Do NOT reorganize anything.
Do NOT rename files or folders.
Do NOT delete or modify anything in the source folder.
The source folder is owned by a third party and I only have viewer access.
I need the freelancer to work within the permissions I currently have.
I do NOT want to request or use the owner's Google password or credentials.
If any files cannot be copied because of permissions or Google Drive restrictions, please identify them rather than modifying anything.

The source folder is very large, so I would prefer a cloud-to-cloud or other efficient migration method, if technically possible, rather than manually downloading and uploading every file.

Destination

The destination is my own Google Drive, where I need the copied folder to be fully accessible to me after the migration.

Verification

After the migration, I would like the freelancer to verify that:

The folder structure has been preserved.
The accessible files have been copied.
No files have been accidentally omitted.
Any files that could not be copied due to permissions are clearly identified.
Budget

Maximum budget: €50 total for the complete project.

Please only apply if you believe the migration can be completed within this budget.

Before starting, I can provide a link to the source folder and explain exactly what access I currently have, so you can confirm that the migration is technically possible.

Ideal freelancer

Experience with:

Google Drive
Google Workspace
Shared Google Drive / shared folders
Large-volume file transfers
Google Drive migration
rclone or similar cloud-transfer tools

When applying, please briefly explain how you would copy a large folder that I can only access as a viewer, and confirm whether you can do it within the €50 budget.