None of this is new or hasn’t been thought about, written about and deflated for centuries. I doubt you have any theologians shaking in their boots.
The meaning of omnipotence as it translates to Good has always been nuanced. There have always been things God can’t do - sin being the obvious example. You could debate whether he can, but just never would because of his character, but it amounts to the same thing and has been orthodoxy for centuries.
The apparent contradictions on the Gospels (especially synoptic) have been done to death. Debated and answered more times than you’ve had hot dinners. There is no serious theologian or biblical scholar who would hear that argument and be at all concerned by it.
Honestly the same applies to the idea of a good god and suffering.