Nice work on that site. I use the VH-R and FA, and it seem those are already covered well. I could contribute PDF files of a 1992 Horseman Catalog and an 80's Foldout on the VH-R.
I could also contribute individual pictures of each of the VH-R lenses (I have all 8) with some info on each lens.
Depending on how detailed you would like the web pages, each lens could have a page with pictures of the different styles. I believe there were 4 styles for each lens:
1) Silver lens on gray board
2) Black lens on gray board
3) Black lens on black board (some recessed)
4) Black ER lens on black board with permanently attached solenoid for ER1