Its resemblance to a big 35mm SLR drew me to the 6x7 in the first place. The Pentax left-side wood handgrip doesn't match that style, and I never felt comfortable with it. Though with a focus-assist lever clamped to the lens, and a big flash unit in the grip's shoe, it might make for a useful working tool.
I found a guy on eBay selling his home-shop made right side wooden grips, that fit close to the body, for a feel similar to the 67II's built-in grip. I don't know how many he made, but I got two, and I don't see him around any more.