I also believe the Egress was more expensive than the Avante all ove the world because of the spec you listed.
Only Option parts for the Egress were Posi Joints Front and Rear, Hi Cap Damper Spring Sets Front and Rear and the Inner Sponge from the Avante, but inly for the Rear wheels as the front ones were thin.
I raced my Egress for 3 years and the only thing i ever broke was one front C- part.
The Avante is much more brittle mainly because of the steering and the D- parts (lower arms).
I loved to race my Egress and it handled well on my track.
SInc ei discovered the modern Tamiya buggies though like DB01R, TRF502X and TRF201 there is no way back for me
