I'm looking to get my house panel upgraded from a 100 amp FPE firestarter panel to new Square D Panel. The panel I want to use is surface mount and the one built into the house in the 1970's is flush mount.
The picture below shows the panel and an overlay on what I want to do with it. I'm planning on adding a whole house generator in a few months so I want to be smart about this upgrade to make that process easier and cleaner.
My biggest unknown is how do I get the home runs that currently drop into the top of a flush mount box now into the "back?" of a surface mount box.
I can shift up the new box 12-14 inches which hopefully will let me avoid a bunch of pigtails.
I'm guessing I'll need to pull the old panel, repair the hole in the wall with new stucco, paint etc before mounting the new surface box.
What is best practice here for doing this.