Over the years I have taught people with little money for free. However sometimes this didn't pay off. Sometimes the money the student saves in this way was spent at another martial arts club. Also when you charge too little then students don't seem to value the art as much. What movie actress would buy a $100 dress? But which one wouldn't want to buy a $10,000 dress?
Wong Shun Leung didn't charge too much money at one time until his wife complained.
So there are people around who will teach for next to nothing. If you know enough, then you could teach some beginners for a small fee and use that for your own further study.
The other thing to do is to practice the Little Idea form over and over and find someone to teach Chi sau to and do that each day until you have enough money to continue your Wing Chun formal training. Doing a few thousand punches a day and a bit of stepping and kicking isn't too bad for those so inclined too.
Just buy one video and practice the contents of that to death e.g. Wong Shun Leung's video (but there are many from every lineage).
Ray
Victoria, British Columbia, Wing Chun