Link to the original Ultimate Challenge thread
Link to the first continuation thread
This is a continuation of the Ultimate Challenge, originally by Just Jim, for KSP 1.0 and up, as well as Making History and Breaking Ground.
Challenge Rules & Clarifications:
1. You can do as much orbital assembly as you want in LKO, but you can't launch any new vessels after any part of the mission leaves Kerbin's SOI, or (equivalently) after you conduct any landing. Additionally, after the