I find 65mm very tight on 4x5" allowing little to no movements, if it's not an imperative you may find a 75mm lens preferable, which is still plenty wide for this format.
I agree, I use a 90mm f6.8 Grandagon and also a 90mm f5.6 Super Angulon, and you can't see any differences. I've had a 65mm f8 Super Angulon since the late 1980's it barely covers 5x4 and is in a Compur #00 shutter, and decided if I ever replaced it I would get a 90mm f4.5 Grandagon N, In the end I added a 75mm f5.6 Super Angulon which I found at a bargain price, I find it's more useful than the 65mm. I'd bought a NIB 75mm f8 Super Angulon for my 6x17 camera a few years earlier and tried it on my Wista, and realised I like the FL. As the 6x17 camera is scale focussu=ing being f8 isn't an issue.
After years focusing a f8 65 Super Angulon often in poor light I got the f4 Nikon 65mm. I do my own processing and can crop to 75mm so I personally wouldn't get a focal length that close. On the other hand if a lens needed to be rescued or something....