If you're interested, Dreamland has an emphasis on GC and several other mods. We are currently on 1.7.10 due to a lack of compatibility but we will update soon as all mods are soon to be updated.
moon parkour, there could be a whole new strategy for this as blocks could be placed very far apart and generally people can't measure the distance between them.
You can build a farm on earth, and what oxygen transport? Earth has unlimited oxygen. You can also build a storage space on Earth too. What is the point of building all of that on a space station?
And why would you bother to train people for Mars? Just automatically send them... What do you...