My wife is picky when it comes to the paint which is what made me think of the whole deal to begin with.Interior walls typically do not have insulation so easier to fish wire so use that to your advantage. If you have baseboard, sometimes removing and drilling holes in studs is easier than patching drywall. Unless your electrician or handyman is an expert drywall patches always can be seen. The texture and sheen of the patch and paint are almost always different, never mind whether it’s actually feather out properly. Painting a patch job after the fact also is a headache because paint never matches.
I say plan it all out before you paint. Everyone’s has different expectations when it comes to how a finished wall should look. If you aren’t picky hack away and paint later. If you’re picky .... pause.