Hi BlueFront,
I did this mod over the weekend, it also works on a 2002 ZX5 Focus. The only problem is that the track chews up quite a bit of the plastic panel, so if you do this mod you will need to trim quite a bit of the plastic back

in order for the track to not chew up the plastic anymore.
Great mod and write-up. Some of your mods are quite practical.
Thanks again,