I've always been after theones but they go for too much for what they are. so I bought 4 Type VR ones off ebay.
they're not cheap and tacky as I thought they would be. they've got a good weight and feel to them.
I had to take the door cards off though to put them on. they are supposed to push on and screw the rest down and tighten the grub screw, but 3 of the holes were slightly too small.
I had to file the door pin rod thread a bit as I had no drills where I was.
Only £7.75 a pair.