I'm sure it's possible to beat them with those levels--they're pretty much identical to the levels I had at the end of the league--but victory will probably be a very grindy affair with lots of switching, especially between Luxray and Staraptor to pile on the Intimidate drops. Depending on the benchmark you had in mind, such as being able to KO Purugly in two hits while taking back anything it can dish out in return over those turns, you might need to set a higher target if you want the battles to go smoothly enough to hit those benchmarks.