I got the car yesterday and damn it looks nice! But it need some new parts to get driveable like a front gearbox top, some front wheels (I just got 7 rear wheels), rear wing mount, some screws and diff balls and maybe a new outdrive because the former owner had tighten the diff to hard so the diff screw had broken and got stuck inside the outdrive and it's impossible to get it out without ruining the outdrive

. But for 60€ I'm happy with the car. I got an extra set of arms, front & rear hubs and some other stuff

.
For the diff, would these balls fit?
Jaad Racing 3mm Diff Ball Set
The original ones are 1/8 inch so it's just a 0.1mm difference, is it too much? And the optional ceramic one cost a lot more than these...
Jaad Racing Thrust Bearing