Brent,
I got my idle holders from VGS Motorsport in Koeln, Germany.
You can contact
boetel@vgs-tuning.de
The part you need is 77093.100.
You can also plug the 1.2mm hole on your holders and drill a 1mm one instead.
You can always drill the 1mm one back to 1.2mm if you do not like it.
Stefan