Hi there this is my first forum post ever so please dont hate on me if i violate an unspoken rule 
. Anyway my idea was that if you launch from the overworld you need a multiblock consisting of a lunchpad and a crane-like structure that attaches to the launchpad but will allow cables that can attach to the ship that will fuel and insert items into cargo ships or rocket ships, kind of like the launchpads IRL, or even just add a multiblock structure that is cosmetic to allow for this. If any questions for clarifacations feel free to ask me
. Anyway my idea was that if you launch from the overworld you need a multiblock consisting of a lunchpad and a crane-like structure that attaches to the launchpad but will allow cables that can attach to the ship that will fuel and insert items into cargo ships or rocket ships, kind of like the launchpads IRL, or even just add a multiblock structure that is cosmetic to allow for this. If any questions for clarifacations feel free to ask me