For an ex-HKG trip, I always have the AA RTW desk set it up for issuance in HKG, then call the AA GSA in HKG and have them issue it.

As noted already, you can't go YVR-LAX on OneWorld (and hence not on a xCIRxx), but you can go YVR-DFW, and DFW-SYD. However, that might push you over the 22k mileage limit.

I always get frustrated with the 22k cap, but still an ex-Asia DCIR22 is a nice product.