I assume you've seen the thread/links to the ebay rebuilder? .... if it's the controller vs a wheel sensor. Good news is I've seen wheel sensors coming down. They used to be something stupid like $400 or more each. Maybe it was $600? IDK. Now I think they are getting down in the $100-$200 range?

FWIW, I've run w/o working ABS for nearly 5yrs now. Now so scary when I grew up with a generation of cars that never had it.