Connections Redux is one of my favorite JAFF stories. It has everything I love: a better Mr. & Mrs. B, the B's have connections, a Bingley with a bit of a back bone, Caroline gets her comeuppance, Mr. Hurst has a personality, Louisa is redeemed, and there is at least one brother so Mr. C is out.
Maybe I am too much of a softy at heart, but IMO the only thing that could have made it better was if one or both of Darcy's parents were still alive.
Please consider another story, even if it takes you a while to write.