Every once in a while, people reach out on the Internet for local wiring help. In order for this to work, someone in your area needs to be reading the post.
Maybe more effective is to reach out at your local train store to see if they know anyone willing to help others in the area. Maybe they will even let you put up a flier there.
Of course, reach out to local clubs and the NMRA and see if they have anyone that can help you.
Modelers in the Dallas, TX area, like JoAnn who asked this question are lucky. There is a very active NMRA division there and 22 train clubs as well as a great local train store (Discount Model Trains)
There are modelers across the country that you can hire to help you with wiring or any other aspect of model building.
Start your own club! When I lived in the Dallas area, I had a large layout. If I did all the work myself, it might not have ever gotten it finished. So I started my own club. I provided pizza and drinks and once a week, about a half dozen modelers would come and work on my layout. It was like a club, but without dues. So modelers who didn't or couldn't have their own layout, had one in mine. They didn't have to spend any money and as it turned out, some spouses were glad to get their husband out of the house for an evening. That's why my website says: Listen to your wife. "Go play with Allan's trains!" My situation wasn't unique. Many large home layouts have a crew of people that help them with it.
So if you need wiring help, try one or several of the above suggestions.
Allan Gartner
Wiring for DCC