The Amazon link didn't work for me, but here's a another shop selling J1772-Type2 cable for the C-Zero for just 95 GBP:https://evconnectors.com/Electric-Vehic ... siec-ev16p
As you know, C-Zero can ever only charge at 3.3 kW or 14.5A at 230V from a Type 2 AC socket, whereas the Zoe can charge at up to 43 kW depending on the model and the available power. On the other hand, Zoe cannot use the CHAdeMO quick DC charging (or any other DC quick charger) which the C-Zero can. CHAdeMO stations are quite common, but Type 2 is gaining ground and I'd hazard a guess that high power Type 2 will be more common in Europe in the long run due to it's simplicity, price and wider compatibility.
In my opinion, it comes down to battery size and available charging. The Zoe is a good choice if it can cover the whole trip without charging or if there's high power Type 2 available en route. Actually I'm a little doubtful if the Zoe can do the whole 90 mile trip without charging at all. Especially in the winter it probably can't, so you'd need to top it up at some point.
If you have CHAdeMO available at half way, you could be able to do the 90 mile trip with just single DC quick charge. Certainly with two. Of course, pricing and looks play a bit part as well, but other than that available charging would be a big factor for me.