I am actively exploring this, and I can assure you, the process is remarkably straightforward.
Sarco is free, but you need to cover costs, such as body removal and cremation. They estimate that this will cost about $3000US or more, but nothing anywhere near what others charge.
The key documents that you need are an "Advance Directive (signed, witnessed and notarized by a notary public)" which is really your no-resuscitation order and medical records if you have them along with a psychological report, So essentially not a lot
There are questions from people on a simple bulleton board who claim to be healthy, who wonder if they'd qualify. The response was that the only criteria seem to be that you are over 50. You don't have to be "sick" to apply.
There are lots of questions on the application about why, etc and if your family knows etc So I am thinking they will judge your application by your commitment or if it is a long-held view that you intend to end your life
I found it interesting that you can arrive alone and CTB without anyone if you so choose.
It looks promising - and I will add things as I move down the application process
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