interlocking cube ships,

its shell made with the resource mined,

carried on to the orbit by the escalator,

then there will be compartments between

these cubes,

to use the rockets as thrusters.

accomodating the rockets, as many needed,

to push the network of cubes.

 

could work that way,

if resource need be transported,

and if to re-use the rockets

instead of making the cubes with rocket engines

built specifically for it.

makes it simpler that way.