Of all the different coats I've checked online, this is the one that seems to fit the bill. It's long but more importantly, it's fully fur-lined. While that in of itself is hardly rare, I've found it surprising how many fur-lined coats lack breast pockets. Also, it's seemingly rare that the sleeves are fur-lined as well. This also isn't a leather coat which I prefer not to wear. In my personal experience, there is nothing better than being buried in a blanket of fur and I believe this coat is the one for me.
I'm not after this exact coat as I believe this costs in excess of £1'500, but if I can something that's considerably cheaper, I would happily consider it.