Update, not a kit, but these are the part numbers:
This is from when I bought all for my second set of wheels a few years ago.
I think the bolts listed at the bottom are for the reluctor wheel. Don't remember what the ones at the top are for. Maybe rear disc*.
*I might... aheam... cough... cough... forgot the rear disc was attached to the final drive when I placed the order at the time – despite having taken off rear wheels on BMWs a million times before. Lapse.
I also happen to have a spare (used) rear disc somewhere in my garage.