If you are wanting Alloy shocks you could get the 75mm and 95mm of these
Ansmann ones. They are not pro race spec but not bad for a quick hop-up.
Apart from that if it's just Blasting around then you are all set
Weak points are front and rear hubs and sometimes the T plate but for messing about I'd probably stick to the £2.99 plastic hubs and not dish out £35 per pair for the alloy parts. Must admit though I have the front hubs on my X-Pro and they are superb quality.
J