191751 Virtual World 3d/

I am looking for someone familiar with creating 3D virtual worlds. I'm looking for the ground work to be already done or open source and just have you set up building blocks where we can create a 2nd life type of environment. Virtual World expert needed! I'll want to see something so better be able to bring it! Examples and samples are required as well as the frame work and time line to set up the basics and let the users build the rest! I will describe more of what I want in detail!! Through skype