I've ordered some 3M VHB tape, I have a feeling that might be a little too aggressive, but we'll see. I've also got some proper weather seal adhesive for the rubber strip which is going to be a bit annoying to use, but hopefully a little more flexible and long-term than superglue. I tend to have issues with glue, so this could all be all new and exciting experience.
I also bought 20 new clips with the foam mounts since the old mounts for those white slide clips the skirt slots into had all compressed and would probably let water in.
If you ever do work out exactly what you used I'd love to know.
I hope the Aygo is providing at least some level of amusement, thanks for the quick response.