Not me, what's the point?
If he wants to pay £1 per litre for fuel from the all singing all dancing fancy machine then good luck to him
I'll stick to 30p per litre from my pretty decent, self built, stainless steel processor.
If I really try I can make 1000 litres in a week (before you scream, remember I run my heating, hot water, proessor, oil settling tank, swimming pool and lister all on bio as well as the cars - only the cars attract the 2500 litre limit)
I dont see the point in even trying to argue or make a point with people like that