I found an interesting video that's apparently Touch Too Much live. What you hear is the regular album version, but they way Bon acts out the lyrics in the chorus and the open notes angus plays after it leads me to think it was done live.
I'm pretty sure it wasn't live because there are points where he misses stuff and you can tell that Malcolm is barely playing and I don't see and chords going from amps to guitars.
The final filmed appearence was on "Aplauso" in Madrid where they played "Highway To Hell", "Girls Got Rhythm", and "Beating Around The Bush" also mimed. That was filmed 2 days after this appearance in the UK on the 9th February, 1980.