There are several Christian RV groups... FMCA has a "Roaming Catholics" group/chapter, (As a Catholic I can't tell you much about other Christian Religions, or rather I do not wish to here in the forum as it gets into, well, Religion is a hot (As in flame war) topic)
I have heard of several other Christian groups but alas, did not "log" the names or contact info.
You might check Good Sams, or Escapees or any other "General RVing" type group you belong to.... Ask if they have a Christian chapter.
And may God Bless
Oh, for the Catholics out there a URL Mass Times Org