You have mentioned that you tried to contact Dr. Rider about DRACO, but were unable to reach him. I recently went to Dr. Rider's Rider Institute website and it appears that it is being maintained. Perhaps contacting him is worth another try.
I found this old news video about DRACO: Draco Keeps the Bad Guys Away! - YouTube
It features a lab assistant who worked on DRACO for draper labs in may 2014 to feb 2015.
https://www.linkedin.com/in/subapradha-narayanan/
She might be someone worth talking to about the history of DRACO research.
On the topic of contacting Rider I would like to share this question I asked him 6 years ago on the Indiegogo campaign:
Thanks for the link. I’ve seen that video before, but I missed the lab tech’s name.
Interesting, thanks. We’ve had similar thoughts.