For clunks - check the droplinks.
Drop links about £10 a side and easy to change (if the nuts come off, mine did).
For track rod ends, probably worth changing the whole assembly each side. That's two ball joints each side and adjuster in the middle. Take it apart and coat the whole thing in copaslip to prevent it seizing in the future. Cost for a facelift:
Genuine:
RH 9193094
LH 9193088 Retail £92.83 + VAT Trade £67.21
Autovaux:
£35.95 + VAT each side
£4.95 next day delivery
Fitting:
In theory one nut at each end of the assembly, but they're ball joints so a screw type ball joint splitter is in order.
When fitted your tracking will be miles out, and potentially your steering off centre if the threads weren't even on both sides, so tracking ASAP. Shouldn't affect camber or rear wheels, so just tracking needs to be done.