Tarn Adams did however release the RAWs of the games to the public domain. As a personal project, I wrote a script to take the different zipped releases, extract the RAWs, and layer them into a git repository while attributing everything to Adams' handle Toady One. I separated the script I used to create it, and the layered RAWs into two separate repos. It's not up to date, but here it is:

https://github.com/tareqak/df_raws_helper https://github.com/tareqak/df_raws