I'll snag Luna and Cho then. And I can probably snag Hagrid and Remus if they're needed. Ron can be shared probably. 

I think starting will be tricky since we need to be able to put the three (Harry, Hermione and Draco) into a suitable enough situation where they can begin to mull over their new pink guest in the castle. I have a feeling even Draco may be thrown off by her. Since he already knows Voldemort is a real threat and he may consider switching sides to help Harry in a year or in the current, he would see her butting in as more damaging than say, awesome. And if Harry gets detention like in the canonverse, Draco won't be happy about Umbridge's means of scaring Harry. If we did start on the train, should I assume maybe Hermione has to join Harry and Draco? As for Crabbe and Goyle, are they still with Draco as henchmen or sort of on the outs?