I had fun with this challenge, although my practice run proved I was not up to a multi-sim household right now. My single sim maxed 10 skills and had three partial skills at level 1, level 6, and level 3.
(10 x 1000 = 10000), (1 x 50 = 50), (6 x 50 = 300), (3 x 50 = 150)
Final Score 10500