Have you considered CO, inert gas or some other planned overdose, done correctly these methods are definitely not gruesome. I'd consider any way of ending your life mechanically gruesome, even from partial hanging all the way up to train jumping etc.
It's definitely about how desperate you are but I find it comforting to know that by waiting just a little more time I can obtain a method that might actually work for me. The way I see it is.. what's the point in pushing myself hard into the anxiety of a gruesome method if I'm already against it and might well just back out due to fear right at the end. I'd just go in circles if I never decided to think outside of those methods that fully know I'm unable to perform.
Good luck