I can tell you that unless they have been replaced by a previous owner they will not have the new gaskets. I'm having a SC fitted at present and decided to get them done at the same time due to half the work needed to get to them being done as part of the SC install.
Mine had started to disintegrate and now awaiting shipment from the US as Nissan cant get them till the end of Feb.
Its worth noting that I track my car, a lot and drive it quite hard (once its upto temp) and never experienced any issues with oil pressure. Its just one of those things that can happen regardless of mileage.
Rob