It seems to me the Xenar would have enough coverage for the minimal movements of the Crown Graphic. Have you actually tried it and run out of movements?
Not yet. I hope you are right but based on lens info Xenar 135mm has no spare coverage for shift movement. I am going to do some test shots today so I shall find out.
Many f/7.7 203mm Ektars fit in a 34mm hole, and provide about a 200mm image circle. My late version of this fine lens in a Graphic shutter requires a 39mm hole.
Ektar 203mm is within my preferred FL (165-210) and is not expensive either. I am sure I can widen the hole if I have to.
Talking about lensboard, 34mm hole is for Copal #0 (34.7mm) shutter, right?
So if I look for lens with Copal #0 shutter it'll fit.
And avoid bulky lens as mentioned before ..