Here's how i think it will work for me. I'm at an advantage with no family at all, and few friends. So it will take a bit of time for me to be missed. I've got a pack with vodka, cord, a machete and a shovel. And my pistol - legally obtained and carried. Take an Uber to drop off point then hike six miles into a "no trespassing" area. Dig hole (shovel and machete), construct cover for hole, achieve a blood alcohol level, jump into the hole, pull the cover over (cord), and pull the trigger. Gone.
I prefer this approach since I want to use a firearm for speed and effectiveness, and I don't want to leave a mess. Also, if there's a body there's a funeral which is the last thing i want.