I know someone asked if the lock wafers are the same in original door handles and aftermarket one is the sub-£20 range?
I can confirm that they are indeed the same. Had one on the bench just now. Aftermarket ones tend to be singular keys rather than pairs so if you buy new front ones for instance, the keys are different. However, if you pull apart your old handles and salvage the good wafers, its easy enough to re-key one lock to match the other and carry on through to the slider and tailgate, pretty much using the salvaged parts and nothing else. Mostly its wear on the handles themselves that create problems - that and missing/broken springs although suitable springs can be bought cheaply on ebay anyway.
Incidentally, the sub-£20 handles are ok. I couldn't really see anything fundamentally wrong with the construction at all. They do the job.
The only real hassles you're likely to encounter are corroded grub screws which I had to drill through in one instance. The new handles are held together with pins so easier to get apart.
Only tailgate lock to do now!
