I was probably high when I make that skill swap calc. Good call.
Still, there are some other things I want you to consider before we proceed:
1) I could be wrong here (god knows how common that is lately), but if you go, say, Skill Swap - Gunk Shot - Infestation IF Gunk Shot rolls poison then Clefable, you get your guaranteed KO with a chance of extra profit.
2) Ok I order first, but it means you won't be able to counterswitch against the colossoil that will most definitely come in. In a Colossoil vs Crucibelle matchup, can you avoid getting hit by Earthquake, getting hit by Rapid Spin and getting hazards rebounded even while I order first? If you think you can, or you are willing to pay that specific price, then sure, let's do it. If not, I suggest you relook ordering first as something not that bad.
3) The end result of this and the next round, assuming your orders in the first hide tag do as you say they will, is something along the lines of:
Azumaril: ded
Crucibelle: 6atk and 50hp.
Then in comes Colossoil. You are losing the damage race and stuck on a bad matchup. You think you can turn the tables with that? At which point? I mean, unless you've thrown in the towel, you need to predict a turning point on your game. A specific situation you will try to trigger that will have some chance of getting you a chance of a comeback. Regardless of the pick for these orders, I need you to think on the following rounds and try to determine a possible (even if unlikely) turning point. If you don't have a goal and play on automatic, then yeah, it will be like you said: a battle of gardevoirs and gallades and sableyes and good (bo-ring) mons. But if your team is good enough, it should provide you with those kind of turning points, of goals. To be more specific: your goal is to use up hazards to deliver pain, right? Which course of action, now or later, may make it happen?
To make your life easier: you don't need to justify your next move. If you change the orders, just post the change. If not, just say "as is". Also, you don't need to overthink your decision any further. Read what I said above, if that doesn't change your mind on the moment you read it, go with "as is" and I will get exclaimer to ref.