If, on the other hand, you want a versatile studio camera that can also be used outdoors, I believe you'd be better off with the Mamiya, Hasselblad, or Bronica systems. The body takes 120 and 220 film - there's a backplate switch for this which also affects the winder and frame counter. Several different viewing screens are available, including split, plain, and grid. Changing film is straightforward and relatively easy. The Pentax has now survived the usual treatment, having been dragged around and through the mountains and deserts of California, Nevada, Arizona, the streets of Berkeley, Oakland, Emeryville and San Francisco, and nothing has ever broken or gone wrong.
Contrast appears to be high on both lenses.
I'm less sure about the 165mm lens. Having said this, it's a great lens for portraits and people shots. The shutter is certainly large, and I can well believe it can cause problems, but with a good tripod I suspect it's not a big problem. The most obvious problem is the mirror. In any case, ISO 400 shots at 6x7 certainly look as good as ISO 100 shots at 35mm.