Oh yes i forgot to mention that: no worries about the idler gears, i am pretty sure RW does neat stuff but it´s just not necessary. Tamiya upgraded the gears and they are as tough as any others manufacturers are.
If you buy the first batch kit without body you will have to buy 54262, these are the reinforced ones:
http://www.modellbau-seidel.de/index...F201-verstärkt
If you buy the upgrade kit you will have these included as well as a body, lightweight motor plate (which is not my first choice, buy 54276 this ones seal better and is thicker) and a funky carbon battery plate:
http://www.stellamodels.net/catalog/...oducts_id=5667
Stella models has the BEST service when it comes to packing a car. This is for sure!