It's not about it being correct or incorrect, it's about achieving the kind of look you want, and asking advice from people who share that view. That jacket isn't correct or incorrect because of the material (though, I don't think it's ideal), it's just not a cut that jives with the kind of look most of MC is focused on. If that's the look you want, you might find people who are more helpful over at the SWD side of the board. The idea that a sport coat can only be cut in one way is kind of ridiculous, and if you keep asking people here, you'll get answers that basically tell you there are hardline rules about XYZ. That's only true if you're trying to achieve a classic, tailored look, which I don't think is what you're trying to do.
That one's nice. I also like 880101, 880102, and maybe 880014.
Are you not able to get physical swatches? I've found online representations of color and texture to be really unreliable. I always ask if the company can send me swatches.
Also, can you do CMT?