Greetings to all developers!
What do you think? BOINC - The Berkeley Open Infrastructure for Network Computing. https://boinc.berkeley.edu/ Technical wiki: https://boinc.berkeley.edu/trac/wiki/ProjectMain
BOINC -> VirtualBox -> operating system with running Tor relay.
Real working solutions? Yes: http://atlasathome.cern.ch/ http://lhcathome2.cern.ch/vLHCathome/
Platform diversity in Tor network may be solved by preparing images with different operating systems. The power of the Tor network may grow very quickly. Fastes reaction to Security vulnerabilities. All client will upgrade Tor images by administrator command. (all images should be signed ofcourse. It is the BOINC principle).
You are doing a great job. Thank you!
-- Best regards, Sergey