Exit bad is really the best alternative I think. It's been used thousands of times successfully for a peacefully death. Only thing is you have to get the equipment and set it up. Books Final Exit and PPh give instructions, PPh even some videos. I am not very mechanical so I need help. It might be good to secure the gas if you can before they ban that too. Nitrogen, Helium or Argon. Better to not do it alone. There is a list of ways to mess it up, but other than that it's peaceful and quick. Obviously this limits some people but I thiink most can get this means. You can use a very clear plastic turkey bag, totally see through so that it doesn't feel claustrophobic. I tried one one, felt fine. Apparently one or two breaths and you are out, usually one deep breath of the gas and you are asleep. Then someone can make sure you don't tip over and knock the bag off.
That's my backup if I can't get one of the magic elixars. A famous author, Jerzy Kazinski, used a bag but did not use this method. He took drugs and alcohol and then put a bag over his head. That's different, but it worked. That's another way, but he did that in 1991, the exit bag became popular starting 1992 after the book Final Exit came out, so maybe he would have done that.
Wish our governments would help us out, sorry we have to figure it out but there are some good, tried and true ways. I would rather a meteor take me out, but what are the odds?