You've been through the trad versus wfp, now you are meeting pro V Diy.
This is what you will do Dazmond.You will buy a van that is too small, with a system that isn't big enough, then you will uprgrade.Then you will decide you need a two man op and upgrade again.
This will cost you money and time.
From what the others say freedom seems a good choice.Spend money to make money.