The E-17 is made up of components including this Shaft Comp,main which is the most expensive.
A sample from the products for the E-17 include: Bolt,flange,6x20, Brg,ball,radial 2, Circlip,28mm, Collar,spline 28x.
The component with the lowest price in the E-17 schematic is the Bolt,flange,6x16.