Hello Michael
It's some time later after your post and maybe your great OTR is already gone. But the luggage kit is quiet interesting for me and our new project - a 1000 OTS. which have only the rear part of the Abarth luggage-carrier left.
Have you done any measurements of the several plastic parts and the rubber or maybe photos when you installed all of the pieces together - i assume there must be some smaller parts at the sides to cover the holes.
Any information would be very helpful for me.
Many thanks and best regards from Thomas