The only reason I subscribe to Workamper News is for the daily job alerts. The Workamper magazine has the same employers and ads for the last ten years. There are plenty of free sites out there.
I have been a single work camper for the last seven years. I have worked with plenty of single female work campers, one was 77 years old.
Making 12000 a year wouldn't be a problem, I just did my taxes and I made over 20000.
Here is an example. You could work for Hoodoo in Washingto as a camp host. They usually pay ten bucks an hour plus some perks. For a five month period you would gross about 8000.00. Then go and work for Amazon for three months 500 x12 weeks = 6000.00 (sometimes they will even extend the season for another couple of months). You will have grossed about 14,000 for the year. For the winter, there are numerous opportunities to work just for your site.
Problems with your hubby? I can't help you there.
David