Referring to the possibility that Ford was in business with Lisi and not just a run of the mill user, if it received a bit of shrug in the thread this time, it's perhaps because that ground has been covered quite a few times here since the first ITO was released. For the keeners of UT, many of whom read the ITO releases cover to cover, it was hard not to conclude that they were doing more than just getting together to drink vodka and piss in parks.
My assumption remains that Ford was bankrolling Lisi. Lisi is clearly a guy who likes to get people to pay for things for him (e.g., Range Rover in someone else's name) and Ford is desperate for some cool factor (e.g. he was excluded from his brothers' hash dealing empires back in high school). I would even venture that this aspiration to some kind of messed up street cred has been more important to Ford than any extra money it brings in. Ford and Renata don't lead an extravagant lifestyle - they're addicts who need money for their addictions, their fast food diets, and decent clothing to put some polish on it all. I think it's more about feeling important and independent and to show his brothers he's just as capable as they are ("See Doug? I can sling dope too!")