My basic idea for this is that Flan's Mod armor could be used as a spacesuit and you could fly planes with certain tags into space.
"isSpaceship True" will allow a plane to fly to space and arrive at the space station whose ID chip is in the plane's inventory.
Putting a warp core block and some Dilithium in a spaceship's inventory will allow it to do interplanetary and interstellar travel.
Putting TWO Station ID chips (Without a Warp Core block) in the ship's inventory allows it to fly between the two stations if they're orbiting the same planet
If you add two station ID chips AND a warp core into the inventory, then the ship can fly between stations orbiting different planets.
The rockets work by teleporting you to the space dimension when you reach Y= 1000.
In order to fly to a space station, you need to have an ID chip for that station.