I had and uses Sinar Norma (purchased new); the Expert model, which I haf included an excellent, very sturdy case (Sinar suggested standing on it!) and included an additional raul extension, a bag bellows, light weight standar to couple the additional bellows it came with, plus a viewing bellows with a magnifier. All in all it was the Rolls Royce of view cameras.
These days I have an Arca, no longer made, that is, I think, a bit easier and simpler to work with. Equally versatile. But I have often regretted parting with the Sinar; you can,t go wrong with it. The P is way to heavy and bulky to cart around.