The electrical box is no joke. I'm always on my toes the few times I worked in there. Just be safe is all, I agree plumbers and electricians overcharge a lot. $660 ain't bad I mean if you put a price on your health. I mean if you get roasted another guy is going to get the keys to your RAV4 prime and probably move into the house just saying. Not to mention well I won't mention it lol. Think about that and weigh the pros and cons.