The case of the astronaut farmer as types of early "how to do it" .

The Astronaut Farmer is a 2006 American drama film directed by Michael Polish, who co-wrote the screenplay with his brother Mark. The story focuses on a Texas rancher who attempts to construct a rocket in his barn and launch himself into outer space.

This then defines the case for the space explorer that has no trouble with patience but takes it slowly and with great determination and makes it into space with his own spaceship.

As such this dependence on the "need to have ones own patch of land" is great. You would then need to service the spaceship each day as you collect the various pieces and put them together. Working with either the inside first as the computers and gears ,wires and pulleys. Or that the work starts with the outside and develops the layers by having metal sheets available from some scrap yard in the area to which none would notice you taking a bit here and there.

So the scenario shows the slow but determined planning of someone that knows the basics of building it upwards from the ground and that the various levels need only to be connected together by the fuel tank with the spaceship and the booster rockets having their fuel delivery system. The rig of making one separate from another is mechanical basics.And the need to have the top part in which you're sitting in ,having some coating for reentry so as not to burn up and a parashute sown together from scraps found at a sky diving place.

This type of descriptive of a astronaut making it to space by himself, has the "need only 4" pre requirements to make it. Meaning that as the technology advances ,the composites needed for making spaceships will be reduced into their basic number of 4.

The basic reason is that being on Earth is stationary with not much activity and that the prospect of being in space is easier to handle as also having some stationary value that need to make comparisons with the 2 ways to do it " as classical and in space books bough from some book shelf.