I agree with the others in advising to get a qualified electrician in.
Looking at the install, I would do it all again.
You are dead with there Northwest. "Professional" means that you do whatever for a living. It doesn't always follow that the professional is any good at it. There seems to a lot of those round here. I mean here where I live, NOT here on this forum of course.Qualifications are no good if you don't know what you are doing and there are plenty of those about, I think you mean qualified Competent electrician, not so easy to find.
But not like that!