Removing that freewheel will reveal a freewheel thread but no lockring thread. You'll be able to thread a single speed freewheel though. Don't forget the brakes.
I,m in the very same boat trying to locate the correct tool to remove mine. Yours is the very same freewheel as the one on my Carlton & the bike I,m restoring at the moment a Motobecane Mirage Any ideas who sells a tool apart from the guy on Amazon?