How much of a hurry are you in? I am in the process of testing the Arista II ortho litho film. I am testing it in the following developers: D76 1+4, Rodinal 1+149, Jim Galli's Rodinal+restrainer soup, and Dektol 1+9. So far I have exposed step wedges on 6 negatives for each developer and developed the negatives for 4, 5:30, 8, 11, 16, and 22 minutes. I hope to be able to read the negs this weekend and then do some test prints comparing the developers.
Based purely on a visual inspection of the negatives, D76 1+4 and Rodinal 1+149 look the best, with a slight nod to the D76. The Dektol negs are very thick and contrasty. But I caution, I have not printed them yet and the proof is in the print.
I will post my results when I finish. If you can't wait, try either the D76 1+4 or Rodinal 1+149, EI 6, develop by inspection under red safelight. (I can't imagine a student darkroom not having D76). It's easy to pull the negs too early when doing DBI. You might start around 6 to 8 minutes in either developer.