Assuming that the filenames from the original R3D are in the TAPE column which is how Redcine X Pro works, the process is straightforward.
1. Create a “pull list”, one for the colorist (everything) and the VFX folks (just clips associated with VFX). I do this by taking the timeline and decomposing with whatever handles you want to have on each event to protect for changes.
2. Grab all the master clips and drag them to the timeline.
3. Create EDL (FIle_16) of timeline (V only)
4. Import into Redcine and it will make a timeline to to the R3D files associated with that project/session.
5. Export trimmed or entire R3D files as per Redcine X Pro functionality. These will be R3D files.
When you say uncompressed, that means a pretty specific thing. You can choose to export as DPX from Redcine if you want uncompressed, but they take up a lot more room, so plan accordingly. If exporting other than R3D, make sure you work with your colorist and VFX folks as to what color space and gamma they want.
For the colorist, you back to your original sequence and export a V only AAF that they will use for the conform. Work with the VFX folks to see what they want to use. You will most likely get a VFX back that you should cut back into the timeline (a new version) and generate the AAF for the colorist with all the VFX in place (and signed off).
Michael