hi there,
best gear linkage kit to get off ebay is from tierod69, this is B&B Components ebay user name.
they really know their stuff and are very helpfull.
got loads of bits and pieces from them over the last couple of years.
if you are replacing the linkage, make sure you replace all the bits under the gear stick, i cheated the first time and did the bits i could get to in the engine bay, which worked for a couple of months, but ended up doing the whole lot when i was replacing the exhaust, and now th egear change is as good as new, with no slop in the gear stick, which is nice 
I can vouch for B&B on the bay.. I have bought quite a bit for my car from them and were very happy.... Oh and yes, get the full kit including new rods and do the whole lot, wll worth it, like a new geabox afterwards!... no "proper" tools are required!.. just a methodical approach and some patience!
