It must, with equally severe cooling requirements, yield to repeated assembly and disassembly. Difficult, especially since the assembly process must be performed while the dewar is cold in order to preserve the lead bag magnetic shield. Elegance is tolerance-ordering, where tolerance means the allowed uncertainty in some manufacturing operations. Consider the gyro-telescope assembly. Artful design orders operations to bring precision just where it is needed.
Elegance is simplification.
Ruthlessly, agonizingly, these must be stripped away. An early problem in Gravity Probe B was telescope pointing, made difficult by floppiness in the dewar structure. Simplicity marks the spacecraft. Around the dewar as main structural elements are mounted electronics, a four-paneled solar array, batteries, telemetry, a sunshield for the telescope, and other support systems. Each of the three control systems requires a sensor and a source of thrust.