XRAY - Model racing cars

Thanks for the info man much appreciated. Well the NT18 kit arrived today around 3PM its now 2:15 am I've worked on the build for around 6hrs on and off I have the front/rear diffs built and mounted on the chassis, engine mounts are installed, fuel tank and pipe is bolted to the motor. I am waiting for my servos to show up. I have an airtronics fhss radio and will be using the micro rx.

I am trying to decide what parts to get for spares or hop ups. I have read about replacing the pivot balls with the aluminum chrome colored ones over the plastic. I am guessing those are worth the upgrade?

So I guess my question now is what spares should I pick up, and what should I hop up or upgrade?

I think some diff gear parts, spur gear are a must, tires, rims. And maybe a screw kit..

The only thing is I am dieing over the size of all the screws and hardware. I think I need to buy some magnfying glasses