You can get Boonen at 5/1 Farrar at 35/1 and Ballan at 40/1 all at
UNIBET. I don't have an account there shame.
You can also bet on Sunday's Race Kuurne-Brussel-Kuurne on there. It is similar to saturday's and has basically the same field. One guy is only racing on sunday is Oscar Freire who is 13/1 and should be worth a punt.