There is a RV place in Rockhampton that has a add for cash for caravans.He takes your van away agreeing on price but friends there is no money after 7 weeks.
Very stressful .He is not a good guy so be aware.He has got add on tv for motor homes now
If you sell your van to a dealer it is payment on delivery end of story.
If you consign your van to a dealer make sure he is licensed, has an audited trust bank account and you've got copies of the OFT consignment agreement.
Then, if he defaults you can make a claim against the Govt dealer fund.