I have to focus somewhere in the signs in the attached photo.
Fotis, welcome to the forum.
I think you’re just a bit skeptical because you don’t fully understand the concepts at play here.
From the DoF charts provided you have a huge DoF, so no matter what you do its' gonna give the shot you’re after. One thing I didn’t see here, maybe it’s been mentioned and I missed it. Keep the camera on ISO 100 to keep IQ robbing noise to absolute minimum.
Since you’ll be at f8 or so, make sure you’ve got the shutter speed to not introduce unintended motion blur. Where you focus is almost irrelevant within reason because of the deep DoF.
I would certainly not recompose. There is no reason to. Yes the center point is most sensitive but in a completely static shot sensitivity doesn’t come into play. With the busyness of that shot, point sensitivity is not an issue, only for very low light, fast moving action or a blank walk with very little contrast for the focus system to lock onto. only in the water or up in the sky might you even have a focus issue.
And even though your WA lens is fast, I would never shoot it wide open unless I specifically was trying to shoot a shallow DoF. NO lens is sharpest wide open, always stop down when you can for sharpness.
I think you’re starting to overthink this! Good luck
SS