Replacing Proxies Created in Resolve with R3D files.

Looking for help finishing my first PP project.

I've cut a sequence using proxies created in Resolve from the original R3D files. Both proxies and R3D media are on the same external drive. I now want to replace the proxies with the R3D files to color grade and export the project.

What is the best way to accomplish this given that the proxies were created externally and don't seem to be associated with the R3D files by PP?

Thanks in advance.