Im rebuilding all the brakes on my 280Z and now I am at the NP-valve (Proportioning valve) and the Brake indicator switch. The parts are ok, but I would like to replace all the seals. The NP-Valve is still availible at Nissan under P/N: 46400-P9200 but it cost $325,00. The Brake fail indicator switch is also only available as a complete unit. Internals are NLA. All I want are the internal seals and o-rings. Does anybody know where you can get the kits these days? Appreciate any help.