Well its a 1.6 so exhaust configuration will be different to what I have but I dont see any reason why it cant be gotten up on ramps with the sensors easily accessible
And as for damaging the cat, yes it is possible and yes the other one could be damaged due to running rich but from my own experience, the ecu map is not a hell of a lot richer by any means at all and if this issue is recent, its unlikely to have caused any damage at all.
You can even jack the car up and have a look for yourself mate. Lambda sensors iirc are green things. and you should be able to find them near the cat pretty easily. Will be poking out around it with wires going up to the engine bay