Still not legal
It is simply unbelievable that Sunrise is half the price of OBA, if comparing like with like. When I was there, Sunrise fuel was way over the price charged by OBA, although OBA is a 24 hour self-service 'filling station'.
BTW 'Immigration status' relates to an individual not to a corporation.
So, whatever Sunrise has or offers, still wondering how this Thruxton instructor manages to work (legally) in the USA.