Rapid Prototyping Breakdown
This is detailed list of redundant prototyping that is used to verify and collect data on all components.
This can be done only by over-resourcing and leaving no stone unturned - using the over-prototyping concept of the Second Toyota Paradox. This is doable only if a sufficiently large team of prototypers is committed, and if funding is allotted for materials/machines/time to build the prototypes. These may be volunteers or paid people.
For example, for the motor, we start prototyping at T=0 from the simplest concepts possible, from bearings to shaft to controller etc - starting to build and verify subsystems, according to the Second Toyota Paradox of excessive prototyping. Rapid prototyping technologies help here.