I have an entry, which at 99.3T is going to be instantly in last place.   However, it gets 16 Kerbals to LKO and returns.  Twice.   That comes out to about 6.21T per Kerbal, gets them all to orbit and back twice.   It's not really optimized for this challenge, so on a per-Kerbal basis someone should be able to do better. The Ship: The First Orbit: The Second Orbit:  
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