No, your age has nothing to do with it, that's true.
What Grant is pointing out is pretty true, though - it would take your eyes longer to focus on gauges that are a lot closer to you, and then re-focus on the road ahead of you than if they were in line or near your standard instruments. Plus, the a-pillar is pretty thick as it is already - an unfortunate side-effect of almost all new cars having to have stronger roll-over protection for its driver and occupants.
The Mearcat gauge pods are good quality, they DO come pretty close to the factory dash colour (nobody realises mine's not a factory part), and the "Mearcat" logo is pretty small and hardly noticable unless you REALLY look from outside.
I think if you still want to go with it, then Bobby's offer is probably the best bet. I don't recall ever seeing a factory or aftermarket gauge pod for the Stagea, and finding one from another car to suit could take a long time, Nissan or not...