Its a two stage rocket. The top bit separates. Cranes are far and away the lightest way to move something up and down. Wires are incredibly strong for their

Its a two stage rocket. The top bit separates. Cranes are far and away the lightest way to move something up and down. Wires are incredibly strong for their weight; five times stronger than normal mild steel. Thats due to the stress exerted when they are made affecting the crystal structure. Not only that, but tensile stress is the strongest mode in general. Structures holding up mass have to resist buckling from all directions. Tensile structures can use every bit of mass budget to hold force going precisely down. Not only that, but you dont need all of rhe structure to hold a crane up, since its just sticking out the side of the rocket. Not only that, but you dont even need a motor since you just need to slow things down a bit as they descend. Yes, they'll use a crane.