Most view cameras are focused by looking at the image on a ground glass on the film plane. It's too difficult to view the image with a lot of ambient light, so you'll need a dark cloth to drape over the back of the camera in order to focus the image. Some cameras allow for an optional viewing hood. G. Carrying Case. You'll probably need a box to store and carry all this stuff.
Cases are like tool boxes.
Prices vary too widely for even a ballpark figure. The downside is that they may have very limited or no movements on them, which removes one of the big advantages of large format photography. If you do decide to get a press camera, try and find one that allows at least some front standard movements. I recommend looking at used view cameras. Good used view cameras can often be found at comparable prices to press cameras, and may offer full movements.