In the making of the CyanogenMod port (WIP) and blob-free builds, I made a script to download, extract and track changes (with git) for the FP2 blobs, if someone is still interested:
Setup (Linux/Mac/Unix):
git clone https://gist.github.com/Roboe/46ff204e210e286f50f27d703ff1abb3 fp2-blobs-downloader
cd fp2-blobs-downloader
cat README.md
You can then list the differences (including checksums, @fp1_wo_sw_updates, ;)) with command-line git or some git graphical frontend you find by yourselves
Disclaimer: I have a private git repo hosted in GitLab with all the updates commited, but I can’t share it because of the license agreement (they are proprietary blobs, after all!).
If you do likewise, don’t share it. I don’t take any responsibility for anyone breaking the license agreement they’ve accepted by running my automated script.