Hi @macagua I will locate the old PloneEdu site content and will post a link here.
I'm glad you explained the importance of a distribution (based on the unified installer). @ericof would want us to do this! (ie. have a PloneEdu distribution, in addition to something already online like with Heroku).
@smcmahon kindly showed me at the PSE12 sprint how to incorporate additional buildout configuration to the unified installer. It didn't seem difficult at the time, but I would have to refresh my memory.