Bottom of inlet manifold I think, although you don't need it. Ditch the carbon cannister, unplug the little valve thing and get rid of that, then the pipe coming from the tank just vent to atmosphere. Then where pipe '289' joins engine side will then need to be blocked off to stop an air leak.
This is exactly what I did with mine, although my pipe '289' was still connected engine side. As I said I'm sure it was under the inlet manifold somewhere, I remember it was quite well hidden but can't remember exactly where it was now sorry!