You've put up so many possibilities, it's difficult for me to help you with them.
For the gut part of the triad, I'd leave off the "1" unless you really feel like you try to suppress your emotions/anger in order to be more rational.
Between 5 and 6, I'd go with 5 based on your reaction to integration/disintegration. 6 is looking for security from others, or seeking to "have faith" in others. You don't strike me as the kind of person who is looking for that kind of security.
Between 8 and 9, your superficial behavior is definitely 8, not 9. Again, you don't seem to strive for self control the way a 1 would. (I score fairly highly on 1, and I partly identify with its integration/disintegration, but I definitely vibe with the 9 more.)
I'd say 5-8-3 or 5-8-4.
Part of my reasoning is, as @Mia. pointed out to me, the first is your true self, your core desires/instincts, the second is how you deal with the world, and the third is the image you want the world to perceive.
Given your reaction to the 5 integration/disintegration, I'd put that first. Given your rather forceful manner in general, that seems to fit 8 as being how you deal with the world, and that would leave 3 or 4 as how you'd like to be perceived, which I leave up to you.
I have a tentative theory that a lot of people will get typed by others as their 2nd-ranking type, in part because that's what happened to me. They see the brainy nerd and say, "5". But what *I* see in me is the 9, because I can see that if I "let go" and dissociate from the world, I'm going to disintegrate in the 9 direction, not the 5. I don't have Ted Kaczynski in me. Also, the highest levels of the 9 resonate with me: not that I want to be a mediator and help people get along together, but because *I* want to be at peace with myself, to have a real balance between myself and the world. Peace/balance always resonated more for me than "learning new stuff", which is merely something I happen with which I have considerable skill.
So the main thing I would aim for in your case is that you figure out which one describes the "real you", the essence of you that may or may not be visible to the rest of the world, that rings most true for you, and then work from there to fill in the blanks. Without that "real you" piece that resonates, the rest wouldn't make sense to me. Once I could say that, yeah, the 9 is how I feel inside and tells me what I need to watch out for, then I could see that the 5 made sense in terms of how I dealt with most everything else, and that annoying and out-of-place 3 that came up in all my enneagram tests made more sense in the role of the 3rd type.