I'll probably either do it in a vehicle, a hotel room, or my bedroom. I'd still work hard to find a location secluded enough and quiet enough where intervention and being found is limited. Of course, if I am unable to, then I'd have to choose a bedroom or hotel room and while it is traumatic to the people who see it, I feel a bit less guilty after what the world and most of it's people have put me through while I am alive. If it is possible (and feasible - without risking failure/getting stopped/getting caught) to go to a forest or some wasteland and then off myself, then I'd do that.