I've been looking hard and long at different P+S designs. I really like the camera types represented by the two links I've posted earlier. but the do require access to tools I do not have. So I'll be settling on something that can be crafted from wood.
Trawling the net has uncovered a number of rather nice wooden based cameras well within most people's (mine included I hope) manufacturing skills, many with a Graflok back as the backbone of the design:
Such as:
Nana Sousa Dias' 4x5 SA 47mm P+S:
Greg Roberts Black Wide angle 4x5 SA 90mm:
Sandeha Lynch's Neretta Snap SA 90mm
Sean Michael Stimac's version of the Sandeha's Neretta design:
Bitt K Lekman's 4x5 SA 65mm "Pancake" Camera:
And my current favourite: FLickr user Saltriver's 4x5 and 6x12 SA 65mm "IKEA plant pot" P+S:
There are however not that many projects of this kind on the net. But 4x5 and 8x10 view cameras, field and monorail, there are hundreds! Works of art many ot them
Oh well. I've started piecing things together, I'll let you know how it'll progress.