I would like to do a RW F trip.

Would this be a good route:

DFW-SYD-CNS-BKK-HKG-AMS-LHR-YVR-DFW

I guess I have to back track from Cairns back to SYD then BKK is that allowed? Going HKG to AMS would be VIA LHR on CX or BA. If I go LHR YVR I keep the miles into my AA account?????? I could go BA to ORD or LAX but no AA miles I think.

Anyone know how many miles I would get with this routing? I am working to get EXP this year and have much of July off to do this.

I'm open to ideas from all you world travelers!

Last but not least the cost? 10K?

Thanks