What to do?

I currently have approximately $4300 saved up from earnings from the labor board due to a previous employer not paying me the correct wages, etc., and my soon to be former employer will be having to pay a much higher amount due to screwing me out of lunches and breaks.

I recently test drove a 2017 Ford expedition and loved it. We are looking to move out of state in the next 3-5 years due to high cost of living and poor air quality which is contributing to our son's breathing issues.

Should I go ahead and put a $15,000+ down payment on a newer SUV for us, or should I continue to let it grow and save up for a down payment on a house?

I should add that I am currently going back to my old site and will be making approximately $21.00 an hour as a security guard for a state agency, so I'll be putting approximately 10-15% per paycheck into my savings account to help the number grow. This job is temporary until I get on with a state agency.

I'm finishing up pre requisites for the RN program at my local community college (application will be submitted in Jan 2020) & I'll be going into nursing after the program is completed. My husband works in IT, so we are looking at moving to Texas as cost of living is much cheaper.