Thanks for all your help, and everyone else as well. I put a metal plug in the back of the mount but it didn't fit very good. Probably not a big deal since this isn't outside anyways. I'll get a new picture of the panel if it is useful. We had to double some of the single breakers to make more space for the 14-50 when we installed it. I actually do not know what the top breaker is for, but probably the oven or something. Hopefully this thread will be helpful to someone later on and give them some install ideas. Hint, probably don't put the 14-50 inside the wall if you might get a HPWC later, rear install is hard without romex! The outer layer of the wires was looking a bit shabby, but the insulating rubber coating inside was fine so I just went with it.Great job! Way to stick with it! Just be sure you set the rotary dial right since you have no way to test currents above 48 amps without a higher power charger Tesla (or special test gear).
And good job even using a torque screwdriver! I have been wanting to get one.
I am confused on the main panel picture:
Is the 30a top breaker I can’t read where you now have the 60a breaker for the Wall Connector?