Call 406-268-1025 during business hours (10am to 6pm Montana time). He has a few 2 stage RRA trigger kits left, I believe. He will ship as long as it's not to a crazy commie state like Kalifornia.
Just tell him that Miller referred you over to him -- he might cuss a little, but it all good.
**I help update their website, and I am sure I saw a few trigger kits still for sale**