Hi! I have an Australian gas barbecue (propane gas). I wasn't allowed to bring the gas bottle with me, and wouldn't be able to fill it here anyway. I've discovered that the gas fitting on the local gas bottles is not compatible with my Australian gas hose that connects to my barbecue. Similarly, Swiss gas hoses (which of course fit Swiss gas bottles) don't fit the connector on my barbecue.
I contacted the manufacturer of my barbecue in Australia and they can't (or won't) help with an adaptor, or any advice.
I'm hoping someone here can assist -- does anyone know where I could buy an adaptor? Or recommend someone in the Basel/Basel-Land area who could replace one end of my gas hose with a Swiss fitting -- or replace the connector on my barbecue with a Swiss fititing? Do plumbers do this sort of thing -- and if so, what's the best way to find a reliable, gas-certified plumber here?
Hoping to enjoy a barbie while this great weather continues.

Many thanks in advance!