Seriously thinking about buying a campervan and giving up my rental home

I can buy a half decent one for $20,000.
Currently I am paying $20,000 a year for rent, power and water.
This will rise to $23,000 from May.
I need to do plenty of research regarding the pros and cons of van life.
Cost of maintenance, hygiene re showering etc, legal parking, must have air conditioning for extreme heat.