Long (tall) denim jacket

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Where can I buy a long denim jacket?

I'm quite tall (5 10) with normal length legs! Most jackets and tops are too short. I have an old denim jacket from next tall range but I've put on weight since then and they don't seem to do long ones any more.
The one I have has a back length of 63cm so I'm looking for something similar.

would this one work?
www.newlook.com/uk/womens/clothing/coats-jackets/tall-pale-blue-boxy-denim-jacket/p/647891145

Thanks, but it's still a bit short. I'm looking for one where the back is roughly the same length as the sleeves.