Entry Ready Mix driving or Dump Truck driving

Hey everyone, I am a maintenance worker for a school system in Kentucky and work a second job as a security guard. I have been working seven days a week with both jobs for YEARS.

I currently have a class B CDL with air brakes and I was looking into a truck driving job that paid well enough to support my family with it being the only job I need. I tested in a school bus to get my Class B CDL so I'm restricted to automatic transmission. I looked into re-testing to remove the restriction, and I also looked into ready mix driving because their trucks are automatic transmission.

With the Class B truck driving jobs do they pay well enough to be around 40,000 a year with overtime during the busy concrete and construction seasons?

I apologize for the long and complicated post. Advice on this is appreciated.