I have been putting this one off for a while. Today it occured to me that if I didn't do it, I wouldn't be able to once the ADAHARS tray is installed and the unit mounted. So, I did it. Decided that a hinge was too much of a pain and for the few times I will likely be in there, really not worth the effort. So, nutplates and hex head 8-32's it will be.