Thanks, Mate ... I'll just have to resort to skulduggery or travel to Alberta... which I see is not
that far away from Washington State!!
Then again, maybe a diligent search in the cleaning products section at the local 'Albertsons' as suggested by 'Euan the Phillistine' will yield a suitable substitute

Hmmm... drain O and Metho, maybe???
Seriously, though, I inquired at World Market, who specialise in food and drink from around the globe, and who already carry Bundaberg Ginger Ale, plus an incredible variety of Australian wines.
Guess what? They don't stock 'hard liquer'! Buy all the wine and beer (these are apparently 'soft liquer', maybe?) you can carry ..... but not 'hard liquer'. Some funny laws in these here parts, pardner!!
So visitors, be warned: Bundie is a mandatory entry requirement!!
Mike C