I have a Nikon F3HP in good condition. There are a couple of dings on the bottom of the body, but nothing that comes close to affecting performance. The ISO selection dial is a little hard to turn past the ISO settings under 25 and above 1600. I would think that you would rarely need an ISO setting below or above these levels<g>. I have taken many lunar, solar, and deep sky photos with this camera at my website. I have used the modified lupes to achieve critical focus. Just search Google for my name and astrophotography. The package contains the following:
Nikon F3HP body
35-70mm zoom lens with Macro
Nikon L37c filter for lens front
Peak 8x lupe that has been cut to focus on the screen allowing for a bright eyepiece-like view of the object you are photographing and to achieve close focus.
Peak 15x lupe for critical focus. This lupe has been modified to focus on the screen of the Nikon and works extremely well.
K and D focusing screens
Folding lens shade for lens
$625 plus shipping in US