I am currently living on around €20 per day. This is about €14 for a camp site, €3 for food and €3 for fuel. When I drive larger distances I obviously use more fuel, but generally stay in a rest area, as I finish driving late, so often save the cost of the camp site. With a cheap campsite, or wild camping, I can live for €10-€15 per day. I know I have already bought the van, but that is as cheap as living gets generally. About the same as South East Asia, or South America. And I have my own transport, and luxuries. I would definitely recommend it.