Good work mate...yes you get the Nissan history at the dealerships but if the car is out of warranty there is no guarantee that some 19 year old at a dealership doing a £300 job is going to do it any better than someone with an eye for mechanics. I recently did mine with my father, we spent about 5 hours in total going over it with a fine tooth comb, changed pads, belts, sparks, oil in engine, diff, gearbox etc etc car runs miles better now, total cost £130