A quick demonstration of what I have done so far:
I did not create the ship using individual cube objects but instead made it out of a mesh generating system similar to the one used in this tutorial series:
Because of unity being unable to use a non convex mesh collider with a non kinematic rigidbody, I had to create my own custom collision system, which actually worked out very well and is not too taxing on computer processes.
I am trying to make this game as low end computer friendly as possible in hopes to make it available to those who have less powerful computers.
I hope you like what I have done so far and I am constantly working on this system to improve it.