PHD2 has three polar alignment tools you could try. One of them, Static Polar Alignment or SPA addresses the problem of the misaligned scope by recording three points as you rotate the mount to determine where the mount is pointing. You can then align that point visually to your red dot.
PHD2 also has a classic drift alignment tool that you may find easier/quicker to use than DARV. The third, polar drift alignment or PDA is another drift method used near the pole. Of the three is it independent of field of view and camera orientation but not as accurate. Tutorials for SPA and PDA accessible at
https://openphdguiding.org/polar-ali...deo-tutorials/
The video series includes how to use PDA and SPA to aim your scope to be pointing at the same place as your mount.
There are many tutorials on classic drift alignment with PHD2 but I have not reviewed them.