I thought I was really clicking along very efficiently on this challenge until I totaled up my scores, but it was still very fun. I love, love, love skilling challenges.
My three vampires got 220 levels in unique maxed skills for 22,000 points and 152 levels in other skills for 3,800 points.
No other additions so my multiplier is 1.0.
22,000+3,800 = 25,800.