$1.5M cash. Perhaps another $1M from receivables. If he excecutes the warrants for 0.05 (which is anti-dilutive) then there's another $750k. He can lend the company another $1M from his own money. Perhaps a $2M bank loan. That's a total of more than $6M.
This will be about proper financing now. As usual. That will induce trust.