The one u/GoArray was replying to me on was this one which was the one I pasted in my main post, it was 48V Charge Controller.
The one in the comment you replied to was after he mentioned that the one above was for 48V Batteries.
After the help from everyone, this is the one I am looking at currently...
The best setup would be a small DC microgrid that stays in your van. The car charger you have would risk running out your car battery. Here's a short list with most of the things needed to set one up.