Real Housewives Christian Spin Off?

We've confirmed ... producers have already reached out to several members of the Calabasas elite who live in the same extremely private gated community Justin Bieber will soon call home.

We're told producers are looking for "accomplished and upscale women in the Calabasas area who have fabulous lives, are very social, are involved in the community, but also have a very deep commitment to their faith."

The community is loaded with stars ... including Travis Barker, Shanna Moakler, Gary Sinise, D.L. Hughley, Kourtney Kardashian, Keyshawn Johnson and Nikki Sixx.