1.20 tons to Minmus and back - Putting KSP v1.11 inventory system to work

1199kg Bill Kerman and inventory not included 1309kg with Bill+inventory Videos referenced: December 2017 Minmus mission    • The Odyssey by Bill, Book 31: A giant leap...   January 2019 Minmus mission:    • 1.3 tons to Minmus and back - The Odyssey ...   Turbo Pumped Minmus mission:    • 1.7 ton to Minmus  and back - KSP   Commandante Sese Minmus mission:    • 1279 kg to Minmus and back - KSP