"Won't you join me on my falling apart spaceship that gets attacked by aliens who outgun us on a regular basis?"
"How much do you pay?"
"I'm from a society with no money. No one on this ship gets paid."
I think I know why he didn't pick any alien crew up along the way.
Ransom may have had it harder, but he could have played it smarter. Retreat, repair, and try to recruit other aliens willing to help.
Repairing the Equinox could be accomplished in a number of ways.. even with half the crew gone. It may not run perfect, but it would be able to restore all of its systems eventually... especially if repairs and maintenance were delegated to automation. That would have been a perfect opportunity for Ransom to bypass SF protocols and manage without half his crew.
Also, Janeway picked up both Kes and Neelix without paying them, and Neelix was initially a die hard trader who wanted 'payment' in exhange for information.
Plus, the Equinox likely carried some things that would be useful for trading.
Its a shame the Equinox was destroyed...
Chakotay or Tuvok could have easily commanded it, and some crew could have transferred from Voyager onto it.