I will second a classic Zefal HP. I found some non-working NIB pumps on the bay a while back. Ordered new valves direct from Zefal and have two brand spanking new HP pumps. I found a frame mount peg I was able to modify for the seat stay and now it mounts in the proper place.

https://goo.gl/photos/uMVHMiyxonyUVKxNA