A good summation of the process. I had a convertible with the Z51 package ordered since July. When they actually starting giving out allocations, the Z51 was on constraint, and I stayed at status 1100, which is order entered, but not accepted. In October, my dealer e-mailed and asked if I would be willing to drop the Z51 package. since the car is for my wife, and she wanted the car sooner, rather than later, and didn't care about Z51, I dropped it. 3 days later I was at 2000, order accepted. 5 weeks later the car was built, and we pick it up at the museum this week. It's all about dealer allocation.
You mentioned you were 5 out of 5 at your dealer. If the rate on the CF interior stays at 15%, which I believe it's currently at, there is a chance your dealer will never get an allocation including the FAY interior. If it goes to,a higher rate, say 50%, then you will likely get your car (unless of course, numbers 1-4 at your dealer also want it.)