Before attempting this, I highly recommend finding a detailed repair manual specific to a 1968 Camaro. These manuals often have step-by-step instructions and diagrams that are invaluable for this type of project. There are also many online resources, forums, and YouTube videos that may show the process, but always cross-reference with a reputable manual.
Be prepared to spend a significant amount of time on this project. It's not something to undertake lightly.