I think what you would have to do is block the AF screw drive from entering the lens, then CiF might work, but i don't think thats a great idea, because the camera
expects this to be an AF lens, due to the lens ID. So you would have to block those contacts as well. Basically you would turn the DFA 100mm into a fully manual lens, but that won't be a good idea because the lens has no aperture ring, so you will not be able to choose aperture for the photos.
Aperture ring is the second thing I want brought back
Honestly, it would be easier for you to buy an A or older 100mm macro lens. They are all good in terms of image quality, but some really old ones only focus to 1:2 without extension tubes. Problem would be with 14mm, because there are not really any good manual old 14mm lenses that I know of. Samyang is a good modern choice, affordable, but in my experience CiF does not work super well with it because it has such a wide DoF it tricks the camera into thinking things are in focus when they aren't.