I'm designing and building a Camperbox/Pod for use in our 2024 Tourneo Custom. It has these seat tracks all over the floor inthe back:

The idea is a removable box that contains a few drawers with a cooking stove, cooler etc. and a bed that folds out. I'm sure you've seen them around.
I'd like to make use of the seat tracks in the car to attach the box so it doesn't move around while driving ... Like a bolt through te bottom plate with a wing-nut or similar.
However I'm having trouble finding attachment points (anything really, I'll adapt) that can fit into those tracks.
Even my Ford dealer couldn't help me out ...
Anyone have any ideas where to find something like that?
Are they the same tracks as in previous (transit) models? Does something exist for those?
I'll use washers, nuts and bolts if push comes to shove, but I'm worried I might damage the tracks.
Thanks for thinking with me!

