Suspension details
Drive sprockets

Idler parts

Bogie parts, note alternate bogie front section

Bogie assembly
Lower swing arms fitted to road wheels, ensure you position the wheel hub grease nipples to the outside
Over head view of upper suspension arms showing the correct alignment

Upper brackets added to rear bogie half

Upper suspension arms, return roller and rubber pads added to rear bogie half (left),
lower swing arms and roadwheels positioned into place (right) without glue at this stage.

Assembled bogies showing the alternate front half and optional lifting eye (right).
Yes I know the lifting eye in crooked because it's only tac glued with white glue for the images.
and for that matter the front bogie half is not glued at all such is the good fit.