A few million possible $10 million for a Liberty JV would hardly put a dent in Tesla new funding.......Timing is ripe for approaching Tesla for a JV with Liberty.

"The electric carmaker's record level of cash burn so far does not seem to be scaring off bond buyers. After a meeting with them on Monday, CEO Elon Musk had orders for just over a third of the $1.5 billion the company plans to offer"

https://www.cnbc.com/2017/08/08/tesla-reportedly-seeing-strong-demand-for-its-junk-rated-debt.html