The Fujinon 105/8 NSW might fit the optical requirements on 5x7 as it has an image circle of 250 mm and hence quite adequate coverage. Both of my copies are very sharp and contrasty on 5x7. These are the more recent multicoated EBC "outside-writing" variants. However, it's a large lens, as evidenced by the 77mm front filter. On the positive side, they're more affordable than some of the other models mentioned in this thread and seem to be as good optically.
For a really compact lens in this range, the 120mm Schneider Angulon from the 1950s to about 1970, can be optically decent and very small, but tests that I've seen suggest that Schneider's quality control was a bit erratic in those days.
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