A Guess take the skewer apart and fit their spools on the dropout ..
any mechanical problem solving friends in K ville?
seems like Over-shopping for a touring Bike but it's Your Money..
Contact
Bike Trailers | BOBgear say or this guy
https://www.bikeshophub.com/trailers.
NB if you had bought an Extrawheel trailer instead, Another Guy named Robert, figured it out for You..
https://www.bikeshophub.com/trailers...le-p-3584.html
Perhaps a Local Machine shop will do something ?
Probably no spare thru axle wheels in Mali or Senegal..
./.