First off I want to say sorry for dropping the ball on the RCCE forums. Shit hit the fan these past two years and I just wasn't able to keep up with them. I attempted data recovery after I discovered the server had expired but GoDaddy had already deleted everything.
I did, however, login to my old bitbucket account and found the original RCCE 2.0 source code as it stood 2015-06-12 and I would like to share it here with anyone who can use it. RCCE 2.0 had changed many hands and been modified quite a bit after this and before the site went down so I'm not sure what all changes there are in this version.
But here is the main branch download from the git repository. FastExt is not included and you will have to provide the source files to compile.