Starting where and what's your budget?
You're basically going to have t buy a walk-up fare at this point, and getting it credited to BD and then having that gold status take effect before the 31st would be quite impressive. And with BD no longer having *A benefits after the end of the month I'm not sure what the value will be, unless you plan to convert it into BAEC Gold.
And I'm not surprised that BD isn't giving credit for AV flights. They aren't a partner and BD would never get paid for that. Plus, BD never announced earning on AV at any point that I'm aware of.