I've got some of those on order with Mark at BetaBoyz, perhaps another order might prompt him to make a few sets? I don't think that they are critical and I hadn't spotted that PU spring pads were available. I have a variety of rubber ones to hand to clean up and reuse the best of them but I suspect none of them are going to be great Tim!
Guy
The PU seats look great and tough.
I replaced the rear shocks a year ago on my HPE VX and cannot remember these steel pads. And they are not listed (better check) on the front spring assembly where more weight is....