Danza, this is a nice 14270 build.
Regarding the dial centering.
You almost got it well centred. At the moment I see it being slightly to the left.
I recently had such an issue on a build.
It does not depend on the mid case itself, but on those two elements:
1. The dial centred to the movement.
2. The movement spacer ring.
If No.1 is done then No.2 is the issue. In general almost all stock movement rings have a slight tolerance. You can try to unscrew the movement tabs so you can move slightly and centre.I suggest you jam some thick paper stripe sort of in the gap that is left between the movement ring and mid case, when you start moving the movement with dial and movement ring. Then screw tightly the tabs, check if the dial is centred, remove the paper stripe, close the case, done.
Should there be no more tolerance to the right, then you would have to slightly sand the movement ring to allow to move as desired. Repeat the above procedure with the paper stripe helper and you are good to go.
Best practice is to custom fit a movement ring.
Good luck!