I am giving up my self made pinhole cameras with poor material quality and I am looking for somebody who can make a well build (specially strong) camera for me.
Check in with Randy at www.Holgamods.com he makes them all the time and might have a unique custom one available now or can make one. Hell of a nice guy too.
And good service. I ordered a 2000 Deluxe with zone plate and he mistakenly sent me a pinhole one instead. His response to my email was to offer for me to either send it back for an exchange or he would send me two zone plate lenses and swap them myself. I made the mistake of letting my wife use it first and now she has a pinhole camera and told be if I wanted a zone plate buy another one. It was a birthday gift for her so her choice. Beautiful and works great.
There is also a person in Greece that makes nice large format ones, we bought a 5X7. He sells on ebay and shipping was resonable
I'm pretty satisfied with my homemade pinhole cameras, but each year I look through the new crop of pinhole shots from Worldwide Pinhole Photography Day (I participate) and I've noticed a surprising percentage of shots that really grab my eye as to quality and sharpness turn out to be taken with Zero Image cameras. They must do a well crafted build of a well optimized design.
Of course some folks like the mushy, shadowy, light leaky and irregular results from crude pinhole cameras, so the definition of "good" can vary a lot.
This one is too small. 5x7in looks perfect size, not too big so I can change negative or paper in a change bag, and not too small so I can make nice contact prints. And there are both papers and negatives in this size.
But while I was looking at the links privided, I came across some 120 panoramic cameras with impressive results. I am considering a 6x17 (120) one, which is also an acceptable size for contact print. (My enlarger just print up to 6x9 (120)).