In a message dated 98-08-02 21:31:29 EDT, RICHARDROBINSONJR@prodigy.net
writes:

<< 1. Both Tendo parents are alive when ranma arrives, Ranma's
 story is unchanged and the girls are the same people just
 toned down, Eg: Kasumi is  going to college but helps out
 around the house when home, Nabiki is Mercenary but not as
 much since she doesn't have to support the family, Akane is
 a Martial Artist but as filled with anger.
  >>

                There is a variation of this theme called "In My Life." Nodoka
and Genma took Ranma on a training trip, Ukyo is his sister (adopted, I
think.) Ryouga is Ukyo's boyfriend and Shampoo is just a friend of Ranma's. It
is a short 5 part story, I can send you a copy if you want. I forgot who wrote
it, it was one of the first fanfics I read.