Definitely give it a try Keith.
You can shoot at 1/60 handheld with the 105mm.
It's just a giant SLR so you'll feel at home.
For about $300 you should be able to get a 6x7 + 90 or 105.
I don't think the P67II is worth it. When you're shooting 10 frames a roll you don't need a rapid fire camera.