I've got what's described on the bag as a "PACE Implants Hollowform V-Brake Kit RC36/38". The part number's not completely legible, but looks like "SFAUP-2311". Never been fitted.
If they're the clamps with 2 small allen key bolts on the back then sir teeny should have some. He sold them to me a while back but they didn't fit mine as I've got tapered legs, so I sent them back.
Also Wold Ranger was making noises like he had some, but I'm not sure which type.