Ordered the 501X, any tips?

[V-Rossi]

In a few weeks time, my ordered Tamiya TRF501X should arrive. I'm aware of the little problems of the car, so I'm going to order the diff balls from Kanzen Racing, and a set of RC-Screwz. When the kit arrives, I'll do the little diff protection mod instantly.
I heard that the TRF501X is very strong and solid, so my question is: which spares do I need? I often hear that people with a JConcepts BJ4 (WE) break front shocktowers, front arms, rear arms,... is this the same for the Tamiya?
And does anyone know where to buy the front one-way?