When Bell integrated the STC kit into their production system to build new ships at the factory, they called the aircraft a 206LT... Gemini conversion kits are still available for purchase...
They also made a new flight manual for the aircraft......and did not authorized single engine operation for their version of the aircraft.....
If you operate the aircraft as designed, the range is similar to single engine helicopters...but to do that, you can't buy the one from our friends at Bell.....
A 206A did not carry much either...have also heard the 427 is gross weight challenged......