The problem with that kind of deal is, it works for coffee, currywurst and crepes trucks as they have very low costs upfront to produce their product and employ cheap students to sell it off.
I have whooping 30% to invest before i can "pay back" anything and do everything myself.
Also, they already know my price, which i set rather high already knowing i deal with a billion € company.
But i can only imagine what it will cost to completely restore my Borco-Höhns bodywork which even VW engineers have now clue about and would need to "investigate" further.
Having learned they invested 100k€ to make a original Coca cola T1 mint, this would mean i enslave myself for the next years to VW

I am not on this earth to help a billion dollar company to maintain its heritage with only one cent of my money or labor.
I have seen too much obvious waste of resources on the tour through the facility when they claimed to be super "thriftly and money-saving" after the dieselscandel. They have no clue what those words mean
Also knowing what they pay to lazy influencers, i think they will have to come up with a special deal to get the only and legendary Sushi-Mobil