Actually I was wrong… The maximum score achievable should be more than 10.000. Depends of what teams you defeated more. If I have 2 players with 300 points worth each one and one with 900, I can reset, kill again the big one, waiting for respawning, kill again and right in the end killed more times than the others.
You are good with calculations. Tuesday, if you remind me, I will tell you how much worth a team with 5 feeders 1* and 1* troops. After that you should be able to calculate exactly, theoretically, what is the maximum of points achievable with the reset and respawning strategy