VAXstation drive sled description

[compoobah at valleyimplants.com]

I have a VS3100/76 that did not come with any drive sleds. I would like to fabricate a replacement, but I haven't been able to locate any in-depth descriptions or pictures of the sled. Does anyone have a description or picture? I'm not sure if it is screw-on bosses like Sun Aurora chasses use for the CD/Floppy or if it is a solid sled with the bosses included.