Hey all! I'm a newbie to van life and working on a budget, I found a van with a build out already for a good price but there are no windows in the main living space (and it has a divider from the cab so no natural light at all) and no vent fan in the roof. The ad says it has spray insulation. I know I would go nuts if I had to live in a box with no windows or airflow. Plus it needs an electrical system still which means I'm probably going to need to tear out the walls anyway to run wires....I would like to have two medium/large windows on the slider and opposite wall and then two of the small winders by the bed for air flow. Is this too much of a headache to be worth it? the price is really good and it's appealing to me that I could live in it right now if I wanted too. I've been looking at the cost of windows alone and it's so expensive...