Big experiment, Genesis 9 Jenna with legacy UVs and Tatum Genesis 3 Hair. This is way too much work to do for a bunch of characters, but one at a time might be okay.
Here is a base set of morphs for Genesis 9 versions of the main girls. Includes Debbie, Jenna, Katie and Lily. You can find them categorized under /Actor/People/Fan Art/Where the Heart Is/. You are on your own with textures, geographs, hair, etc.
One thing I noticed in the morphs for G9, the eyes don't always stay in the eye sockets. Certain expressions will cause them to move forward. I think it is because of the crude way G8 has to be converted to G9 that results in the wonky eyeballs. I guess we are going to have to wait for real tools to make them work easier.