I am mostly interested in the HP-8 since I learned to fly at the same field where Moffat was when he owned the HP-8. I helped put it together on occasion and gabbed with Moffat about sailboats while he worked in the wing with micro balloons and resin.
The HP-8 is in storage at Harris Hill in Ithaca NY awaiting restoration. I'd love to see it again since my last look at it was probably almost fifty years ago.
BTW, I think the shape of the fuse bottom is slightly indented right under the wing and not smooth as in the somewhat cleaner three views. Some of the photos seem to confirm that it was not a perfectly smooth blend.