Consolidate Performance Center from 4 to 1 server

My Performance Center is running on 4 servers, one for each role. If I want to consolidate them to run all roles on a single server, what do I have to know?

Would I simply enter my administration site and reset my server configuration, enter the name of the current administration site in all fields and then be ok? Can I then copy folders and files from the original File Server to the new single server and still be able to access old results?