The problem is there are at least three different arrangements to wire a three way (with a single light). Without seeing how the original wiring is, it would be almost impossible to walk someone with limited knowledge through it. I know a couple Master Electrician in my area that can't even do the simple way to do it. Again, without determining how the wires are run it will be difficult to walk anyone through it. JMHO
When identifying which wires are which in a 3way circuit, the number of possibilities in how the wires are run is not relevant. All you need is the three wires on each switch. No matter what the setup is, there will always be two wires that run between and are connected to both two switches, one switch will have the line connected, and the other will have the load connected.
