If we changed the rocket creation system, what if we did it like IndustrialCraft 2? Like when you make an MFSU; you have to make all the components first. So say... To build the engine, you have to first create the fuel rods. Then you have to get tier 1 heavy duty plating to keep in the radiation, as fuel cell casings. Then you have to put that in compressed steel, say... 3 fuel rods and 6 compressed steel, then you have the engine, and you have to build the main cockpit
Or even better: What if to go to new solar systems, there was a whole new dimension, that you have to prepare for a massive journey for? And have /dimensiontp not work between solar systems? xD So then you have to go via this 'wormhole' dimension, where you are constantly monitoring your progress, and there's stuff for you to see all the time, like in Star Wars, but not lines. Like you can see far away galaxies through small windows xD Oh and your rocket actually docks with the side of the dimension, an actual interstellar craft, which you have to collect lots of energy to power, rather than fuel. That would make Galacticraft go from an awesome mod to THE BEST mod in existence XD I mean come on... Interstellar travel, where you actually have to spend time travelling to the new galaxy! And you'd also have to use a certain tier rocket to get to every single planet xD