Only if it is convenient for you and you can locate a smallish bottle, like maybe in the US what we would call a pint bottle. I believe this would be in the area of 250ML. It is very good stuff, like cognac. I would enjoy just a little from time to time, I don't need a liter of it. I'm not sure if customs allow it to be brought in. If I were more persitant maybe it I would be able to locate a small bottle of it.
I don't believe the catalytic converter would cause this condition. I also don't believe the O2 sensor would even cause this, it would run in a fixed operating mode, but not so rich that the engine would flood. It would be interesting to see how it runs with the CIS control unit disconnected.