Hi Neil
Maybe one of those hood hold um up deals the they have on stock cars, make them in all different sizes.
Some kind of a slotted over center thing, have to do a little doodeling to get her figured out.
I built a counterweighted rope and pulley thing to hold up the clear plex covers on my display case but you would not wan't the lead weights banging around in there, so there has to be a way to hook up two of those hood holders
Don