This gauge I found is brass plated and looks ok, but I will still double check it after I decide on the regulator.I am not sure what the gauge you linked to is made of. But brass and glass SPG are more durable than the plastic kind. However, plastic gauges are lighter for travel if that is a concern. In the US brass and glass gauges run $50-$100 US, depending on the make. However, they are all made in the same factory in Italy.
The reg set is available without the console for 258 U.K.