Costume National pants

[big at lc]

Help! I was in CN's NYC store a couple weeks ago, and got a blazer on sale. It's black with a raised stripe sort of pattern. Here it is in grey, but mine is black:

Now, I also saw the pants that went along with the blazer to make a suit, but they did not have my size (or so the SA said, even though as of late I've been thinking he's incorrect in saying that). I'm a 32 or a 34 waist, so I would be a 46 or so correct? If anyone has any insight as to where I could get these pants, or if you have them and would be willing to sell them to me, that would be amazing. I'm going to call their NYC store tomorrow to ask if they still have them, praying that they do. I'm sad I didn't get them anyways when I was there before

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- Ben