Nitrogen Setup Help Final Goodbye

[SadCryingBunny]

Hi I got the Nitrogen Tank, can somebody please assist me in the final step which is attaining one connection part and any medications to take to ease the dying process. I want the strongest sleeping pills and anti headache if required. I live in Australia and my 10L Nitrogen tank has a "Type 51" valve (please refer to the 'First' image). I have an empty 3L 232Bar Faber Scuba Tank. I am wanting to transfer the Nitrogen gas into the 3L Scuba tank for the lightness and portability while being able to hide it in a backpack while traveling to my final resting place in a remote location. I have a hose fill whip which you can see is connected to the dive tank valve. I just need the connection that connects the end of the whip hose to the Type 51 Inlet Nut that goes into the Nitrogen Tank Valve. I know how to transfer the gas and bleed the valve once done and shut everything off.