As most have said.. get some new shocks and bearings...
For bearings I'd recommend
HERE SO CLICK ME ...
And for shocks then the
MASTER SMASHER set fit if you swap out the lower fittings with the original shock set ... These have alloy caps and if treated well and not over tightened will do a great job, real good budget shocks in my opinion. They will deffo do till you fancy up grading.
I'd also look into getting the
TURNBUCKLE set..it's not that expensive and is a huge bonus for set up.
Apart from that grab maybe an extra set of rear hubs and a rear T plate and you are pretty good to go. It all adds up to be about £30 and you are set...for a total spend of £48 with upgrades and spares how can you go wrong
Oh..if brushless you might wanna grab a nylon idle gear from JE Spares for about £5 ...

It might say out of stock..but they can get them in pretty quick. I got mine in 2 days even when it said out of stock...no Haribo though
J