I think the shutters on the two lense are about the same diameter. Hey if it doesn't fit you'll just have to get a Walker Titan XL 45

Another thing is that your flange-focal-length is 97.4mm, so that Nikkor is slightly recessed (7.4mm) in the shutter already. Measure you camera from lensboard opening to ground glass (with a ruler through the lens opening on your lensboard) and see if it will squeeze down to 97mm.