Isn't this getting a bit complicated for a land rover?
Lights, horn, wheel bearings, bushes if can, steering ball joints, holes in the chassis, sharp edges, you won't stand a chance of guessing emmissions, wiper blades, fuel leaks, tyres, seat belts how embarrassing is that and I've failed on them.
Far more important is which tester you use! You want someone who understands LR and ideally what you use it for.
Mike