Mate, I'm glad I asked the question before I forked out! I'm familiar with both the setups, but looking at the techedge site, I wasn't sure if they are still making them (the site is about 15 years old as far as looks go!)
I was erring towards the LC1, but now I'm not sure. So it was the wideband controller that packed up, not the actual O2 sensor (which are bosch items?!?)