personally for resale i like to have a decent stamp in mine. its out of warranty now so main dealer isn't going to do it. even in warranty i'm dubious about letting nissan touch it.
i think your local to me, i highly reccomend Team AFM at martlesham. they are motorsport mechanics and do alot of work on mine and they are very good with cars,
come resale time it will show that the car has been well looked after.
i bought my own consumables, so the price they charged me was about £220 ish i think. that also includes millers racing brake fluid which they supplied for me as they had a special on it at the time.
they'll even follow the service to your instruction, i found exactly what was required on the forum for that mileage and service and they did it all.
well worth a ring.