Due to the importance of the armor system to the Aurora Titan design, Ves deliberated carefully on his choices before he settled on the Pisaro armor system.
As for the selection of other component designs, Ves did not trouble himself so much over it. The Aurora Titan was basically a super-sized medium space knight so he generally picked components designed specifically for this mech type.
The other components he selected mainly emphasized practicality, defense and endurance. Sadly, Ves hadn't been able to make his mech as energy efficient as his previous original designs.
"There's a huge difference in energy expenditure between landbound mechs and spaceborn mechs."