Closest I know of is the Rocket from Canvape. It's plated brass (maybe? plated yes, no idea what's underneath), but it's $30. It's more of a 3.1 clone though, taller, with the extra 'catch' section at the bottom.
Vapemate carries the Tobeco KFL clone, but it's been out of stock for a little while. It's also $70, at which point maybe spend the extra $30 and get a Russian 91%.