stove with slip-on propane connection

I recently bought a cute sink/single burner stove combo on Ebay. Looks great in my tiny trailer, and saves a ton of space. The problem I need advice on is connecting it. It has a corrugated (barbed?) pipe for the gas connection. I'm sure these work fine in China (whence it came) but apparently here a flared fitting is required. Any ideas on how to adapt it to a 3/8" flare, or failing that the safest way to connect it as a slip-on? Many counter people at RV stores have threatened me with an immediate and fiery death, so I want to get this right, if only out of spite!