Zooming in on a Follow Focus

Cinefocus R2

I've got several nice camera's, a beautiful Gini rig, a Lilliput monitor, a sleek set of lenses... so what's missing? A follow focus system. I love the touchscreen focus feature on my GH2 in combination with the pancake 20mm 1.7 but that's not going to work with my old prime Carl Zeiss and Meijer-Optik lenses.
My lenses have fixed gear rings so I could focus manually, I mean literally, by getting my right hand to the lens but I just don't see that happening smoothly. Try to keep a relatively heavy rig balanced with one arm while turning the focusring... nah, I don't think so. And even the follow focus is not going to solve the problem of having to let go of one handgrip. But it will be easier to access and make fine focusing a breeze.